Trivia from the episodes of Phineas and Ferb during Season 3.
This page automatically displays the Trivia from the individual episodes. To update it, do not edit this page. Go to the episode's page and change the trivia section on that page.
The Great Indoors
- It is revealed that Adyson is accident prone.
- Doofenshmirtz remarks that El Matador de Amor has three simultaneous storylines that interconnect, just as Phineas and Ferb does.
- This is the third time it is raining and everyone is forced to stay inside ("The Monster of Phineas-n-Ferbenstein", "Hide and Seek").
- The rocks in the mountains are made of papier-mâché again ("Suddenly Suzy").
- Doofenshmirtz's invention is not noticed by the public again ("Split Personality").
- Snow angels are made again ("S'Winter", "Phineas and Ferb Christmas Vacation!").
- This is the third time background music reminiscent of the Back to the Future films is used ("Phineas and Ferb Get Busted!", "Phineas and Ferb: Summer Belongs to You!").
- It is unknown what Jeremy likes about Candace due to the pre-empt of the soccer game in the end.
Canderemy
- Linda and Major Monogram don't appear nor are mentioned in this episode.
- Baljeet breaks the fourth wall twice:
- When he mentions the title sequence.
- When he notices the slow motion effect.
- Mrs. Johnson speaks for the first time in this episode.
- Rover appears for the first time outside of the title sequence in this episode.
- This is the eighth episode with only Candace's name in the title ("Lights, Candace, Action!", "Candace Loses Her Head", "Journey to the Center of Candace", "Oil on Candace", "Cheer Up Candace", "Candace's Big Day", "Candace Gets Busted").
- The fair's background music sounds similar to the one that is heard when Phineas and Ferb are in Mitch's ship ("The Chronicles of Meap").
- This is the second time Isabella asks Phineas to go somewhere and ends up going with both him and Ferb ("Out to Launch").
- "So cold" is said again ("Hide and Seek").
- This is the third time Perry doesn't interact with Major Monogram ("Hail Doofania!", "What Do It Do?").
- Isabella says "Oh, Phineas!" again ("That Sinking Feeling", "Phineas and Ferb: Summer Belongs to You!").
Run, Candace, Run
- This is the first Season 3 episode where the other kids don't show up.
- This episode marks Suzy's first appearance in Season 3.
- This is the second time a member of the Slacks is seen without the rest.
- This episode marks Mr. Johnson's first appearance in the series.
- This is the first time Doofenshmirtz and Perry's actions don't interfere with the actions of Phineas and the gang.
- This is the fourteenth time Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality").
- Candace does not bother to bust her brothers in this episode.
- This is the ninth episode with only Candace's name in the title ("Lights, Candace, Action!", "Candace Loses Her Head", "Journey to the Center of Candace", "Oil on Candace", "Cheer Up Candace", "Candace's Big Day", "Candace Gets Busted", "Canderemy").
- This is the second time Stacy is seen with a horse costume ("Canderemy").
- This is the second time Suzy appears without Isabella, Baljeet, and Buford ("Crack That Whip").
- This is the second episode in which none of the main running gags are mentioned ("Tip of the Day").
- This is the seventh time Ferb does not speak.
- This is the fourth time someone has anticipated Phineas's opening gags ("Hide and Seek", "Bubble Boys", "The Secret of Success").
- This is one of the few episodes where Phineas and Ferb's big idea doesn't disappear because of Doofenshmirtz ("Phineas and Ferb: Summer Belongs to You!", "The Secret of Success", "Canderemy").
- This is the second time there is a family reunion of some kind ("Thaddeus and Thor").
- This is the second time a character claims a section of land is an Indian burial ground ("She's the Mayor").
- This is the first time Jeremy's unnamed drummer talks.
- This is the fifth time a character has a birthday. The first four being Candace ("Candace Loses Her Head"), Linda ("Mom's Birthday"), Dr. Doofenshmirtz ("Raging Bully"), and Vanessa ("Dude, We're Getting the Band Back Together").
- Phineas is seen with his racing helmet again ("The Fast and the Phineas").
- Hildegard Johnson appears again ("Crack That Whip").
- Ducky Momo appears again ("Nerds of a Feather", "Phineas and Ferb Hawaiian Vacation").
- The Uncovery Channel appears again ("What Do It Do?").
- The ticking sound from "Watchin' and Waitin'" is heard again ("Don't Even Blink").
Last Train to Bustville
- The Wilkins Brothers appear again ("Just Passing Through").
- This is the second time Candace states she won't give up on busting her brothers ("Phineas and Ferb's Quantum Boogaloo").
- This episode reveals that the Wilkins Brothers' mother is Glenda.
- This episode reveals that Grandpa Clyde once won a famous balloon race.
- This episode reveals that Linda needs contacts.
- Doofenshmirtz mentioned himself bringing his work while in vacation ("Phineas and Ferb: Summer Belongs to You!").
- The Farmer and Farmer's Wife appear for the first time in Season 3 in this episode.
- When Phineas and Ferb see the dodo bird, Phineas says "Check it out, A dodo bird! What's next on the list Ferb?", and Ferb says "Frankenstein's brain", which corresponds with the theme song.
- This is the fifth time Isabella has a part of the "Too Young" line ("The Chronicles of Meap", "That Sinking Feeling", "Isabella and the Temple of Sap", "Not Phineas and Ferb").
- Phineas and Ferb's outfits from "De Plane! De Plane!" are seen again.
- Perry is seen riding in an Agent P balloon again ("Hip Hip Parade").
- The French artist from "City of Love" is seen again ("Phineas and Ferb: Summer Belongs to You!").
- This is the second time a character says "Uh! I give up!" as their final speaking line ("Ready for the Bettys").
- During the scenes with the hot air balloons, a slow version of "Bigfoot" can be heard ("Get That Bigfoot Outa My Face!").
- The girl in the swimsuit on the high-dive in the song "Give Up" is also one of the girls on Vanessa's swim team in "Not So Bad A Dad", except with a different color swimsuit.
- This is the first and only time the Evil Jingle is sung by a female vocal group instead of The Slacks.
- This is the third time that Camp Phineas and Ferb is seen ("Get That Bigfoot Outa My Face!", "The Ballad of Badbeard").
- This is the second time that Doofenshmirtz's evil woodland retreat is seen ("Get That Bigfoot Outa My Face!").
Phineas' Birthday Clip-O-Rama!
- The fourth wall is broken numerous times in this episode, with the characters aware of the fact that they are in a clip show and that they wouldn't actually be able to see the clips themselves. Doofenshmirtz also breaks the fourth wall when he says to Perry "Look what you made me do ... 40 seconds ago", in reference to the fact that another scene had interrupted his own.
- This episode demonstrates one of the only times Doofenshmirtz doesn't make Candace's evidence disappear, but rather it's dismantled at free will.
- In the Brazilian Portuguese dub, the line "You're the best" is said by Phineas instead of Tabitha.
- "If I had a nickel for..." appears to be a running gag for this episode.
- This is Irving's first appearance in Season 3.
- This is the first time "Oh, there you are, Perry" is said in Season 3.
- When Phineas is at the Mr. Slushy Dawg, the elevator version of "Gitchee Gitchee Goo" can be heard in the background.
- Excluding the songs in the clips, this is the first episode in Season 3 to not have a song.
- This is the second clip show of the series ("Phineas and Ferb Musical Cliptastic Countdown").
- A clown child appears again ("The Chronicles of Meap").
- Candace jumps over a road construction again ("Phineas and Ferb: Summer Belongs to You!").
- This is the sixth time a character's birthday is celebrated. The first five being Candace ("Candace Loses Her Head"), Dr. Doofenshmirtz ("Raging Bully"), Linda ("Mom's Birthday"), Vanessa ("Dude, We're Getting the Band Back Together"), and Hildegard Johnson ("Run, Candace, Run").
- This is the second time Isabella cries, but this time in joy ("Phineas and Ferb: Summer Belongs to You!").
- This is the second time Doofenshmirtz thinks the suffix inator changes the future of his invention ("Rollercoaster: The Musical!").
- The music that plays when Perry and Doofenshmirtz are making Vanessa's birthday party is played when Phineas arrives at his birthday party ("Dude, We're Getting the Band Back Together").
- This is the third time only Phineas' name is in the title ("The Fast and the Phineas", "Swiss Family Phineas").
- This is the second time Phineas and Candace hug each other ("Traffic Cam Caper").
- This is the second time Isabella replies to someone without using her catchphrase ("Ready for the Bettys").
- Doofenshmirtz says that he must stop living in the past again ("What Do It Do?").
- When the DVD recycle truck sees the incoming traffic, Buck Buckerson is seen riding a motorcycle ("It's a Mud, Mud, Mud, Mud World").
- The construction lady appears again ("Spa Day").
- Phineas wears his red-haired helmet again ("Phineas and Ferb Get Busted!").
- The portrait of Charlene is seen in Doofenshmirtz's house again ("Run, Candace, Run").
- The song that is played during the Roger Doofenshmirtz TV special is the Doofania national anthem ("Hail Doofania!").
- This is the third time Major Monogram refers to Perry by his name ("Toy to the World", "Phineas and Ferb-Busters!").
- Candace says "Mom" a total of 56 times in the episode, making this the most times she says "Mom".
- This is the fourth time Isabella's room is seen ("I Scream, You Scream", "Isabella and the Temple of Sap", "Brain Drain").
- This is the second time Candace attempts to bust her brothers by stealing and securing a disc as an evidence ("Traffic Cam Caper").
The Belly of the Beast
- This is the fourth time Lawrence asks "Hey, where's Perry?" ("Out of Toon", "Tip of the Day", "Swiss Family Phineas").
- This is the second time Buford and Baljeet pretend to be a mythical creature ("The Lake Nose Monster").
- The politician eaten by the shark has a striking resemblance to Roger.
- Phineas has referenced the famous line from Jaws before, when he says "We're gonna need a faster bike" ("Traffic Cam Caper").
- This is the second time a bubble pops with Doofenshmirtz cursing Perry ("It's a Mud, Mud, Mud, Mud World").
- On July 19, 2014, this episode was shown paired with "Live and Let Drive" for Disney XD's "Show Me the Shark" programming gimmick.
- Candace doesn't interact with her brothers in this episode.
- This episode and its sister episode are one of few episodes in which Perry does not go back to his owners nor does Phineas say "Oh, there you are, Perry".
Moon Farm
- Jeremy is revealed to have a British background.
- Irving seems to have a crush on Candace and Stacy.
- Linda is absent in this episode, but is mentioned.
- This is the first time Isabella is seen without any speaking or singing lines, despite appearing in most of Phineas and Ferb's plot.
- Baljeet and Phineas break the fourth wall. This starts when Baljeet argues with the male singer from "Moon Farm". Phineas continues by saying that they have limited time and that Baljeet shouldn't argue with the soundtrack.
- Phineas says that Ferb found the lost verse of "The Cat and the Fiddle" in the Dead Sea, which is between Israel and Jordan. Phineas also mentions that the paper Ferb found is a little wet and salty, and points out that the salt concentration in there is higher than the usual.
- This is the tenth episode to have live action shots ("Rollercoaster", "Candace Loses Her Head", "Lights, Candace, Action!", "Out to Launch", "The Chronicles of Meap", "We Call it Maze", "Rollercoaster: The Musical!", "Canderemy", "Misperceived Monotreme").
- This is the second episode where someone is hit in the groin ("Cheer Up Candace").
- This is the third episode where Doofenshmirtz has green skin ("Phineas and Ferb Hawaiian Vacation", "Wizard of Odd")
- This is the second time Phineas and Ferb go to the moon, but it is the first time that they are actually seen there, as their previous visit was off-screen ("Traffic Cam Caper").
- This is the second time cows are heavily involved in an episode ("The Magnificent Few").
- This is the second time Doofenshmirtz mentions trying to have a "green thumb", and also the second time Doofenshmirtz's plan involves plants ("Atlantis").
- This is the eighth time Phineas and Ferb go into space ("Rollercoaster", "Out to Launch", "Unfair Science Fair Redux (Another Story)", "The Chronicles of Meap", "The Secret of Success", "The Doof Side of the Moon", "Rollercoaster: The Musical!").
- This is the second time Baljeet and Buford go into space ("Rollercoaster: The Musical!").
- This is the sixth time Isabella goes into space ("Rollercoaster", The Chronicles of Meap", "The Secret of Success", "The Doof Side of the Moon", "Rollercoaster: The Musical!").
- This is the second time Phineas and Ferb build a rocket ("Out to Launch").
- This is the third time Isabella is seen only as a background character ("Mom's Birthday", "Oh, There You Are, Perry").
- This is the sixth time Doofenshmirtz's invention doesn't affect Phineas and Ferb's project ("Voyage to the Bottom of Buford", "Phineas and Ferb: Summer Belongs to You!", "The Secret of Success", "Canderemy", "Run, Candace, Run").
Ask a Foolish Question
- This is the first time the names of all the Fireside Girls are mentioned on-screen. It is also the first time Ginger and Milly's names are mentioned.
- Phineas and Ferb seem to like fat-free whole-grain granola bars, but Candace doesn't.
- It is revealed that Buford wears a boys husky, extra large size of pants.
- The Electronic Machine sound is heard again ("Picture This").
- This is the second time Candace is left speechless after seeing Linda ("Phineas and Ferb's Quantum Boogaloo").
- The medical imaging technician gets scanned by the supercomputer and says, "This is so not worth minimum wage!". This echoes Candace's "This is not worth $3.50 an hour" in "Toy to the World" and the girl selling hair care products in "Isabella and the Temple of Sap".
- During the song, Phineas, Ferb, Isabella, Buford, and Baljeet perform the same dance from "Technology vs. Nature".
- This is the third time Buford carries Baljeet as though he is luggage ("Don't Even Blink", "Phineas and Ferb: Summer Belongs to You!").
- The Super Computer's voice is similar to that of Doofenshmirtz's Alien-inator ("Ladies and Gentlemen, Meet Max Modem!").
- Phineas' head is seen with hearts around it again, only this time it is his real head instead of fabric cut-outs ("Run Away Runway").
- The Jeopardy! theme sound-alike is heard again ("Fireside Girl Jamboree").
- The diving helmet appears again ("The Lake Nose Monster").
- Ancient helmets and shields appear again ("Greece Lightning").
Misperceived Monotreme
- It is revealed that Doofenshmirtz's father is alive.
- This is the first time Phineas and Ferb's big idea is cleaned up by Candace.
- When Candace is cleaning up the funhouse, the song "Funhouse" is played backwards.
- Tick-tocks from the song Watchin' and Waitin' are heard again ("Unfair Science Fair Redux (Another Story)", "Don't Even Blink", "That Sinking Feeling", "Make Play").
- This is the second time another platypus besides Perry is shown, though this time he is distinguishable from Perry ("Oh, There You Are, Perry").
- While Phineas is talking to Perry, the reporter can be heard telling the zookeeper that she had made the word "platypus" up, and then she says, "No, it's a real word". This is similar to a conversation Candace and Stacy have ("Gaming the System").
- This is the third time Ferb says the "too young" line ("Vanessassary Roughness", "Canderemy").
- This is the fourth time someone other than Perry goes to fight Doofenshmirtz. The first is Peter the Panda in "It's About Time!", the second is Planty the Potted Plant in "No More Bunny Business" and the third is the Dodo in "Last Train to Bustville".
- This is the third time Perry doesn't interact with Dr. Doofenshmirtz ("No More Bunny Business", "Undercover Carl").
- This is the second time Perry is referred to as a monotreme ("Swiss Family Phineas").
- The inexplicable Giant Floating Baby Head is shown again.
- Major Monogram realizing the faux-Agent P is not in uniform is similar to the Evil-Con receptionist realizing that the faux-Dr. Wexler is not wearing an Evil-Con badge ("A Hard Day's Knight").
Candace Disconnected
- When Doofenshmirtz and Perry are watching the exercise program, at the start they do a movement very similar to the Caramelldansen, which is also done in "Phineas and Ferb: Summer Belongs to You!".
- This episode includes the first time Perry is seen smiling since Season 2, implying that he actually enjoys doing Doofenshmirtz's exercise program.
- This is the second time Perry refuses to defeat Doofenshmirtz ("Perry Lays an Egg").
- This is the fifth time Doofenshmirtz succeeds on his scheme ("Hail Doofania!", "At the Car Wash", "Robot Rodeo", "Split Personality").
- This is the fifteenth time Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run, Candace, Run").
- It is never shown what is the other thing Phineas and Ferb built besides the new cell phone for Candace. According to the boys, it is very tall, heavy, interesting, and it could fit inside the truck that belongs to a man from the museum.
- This episode marks Agent T's first appearance and Vanessa's first appearance in Season 3.
- Vanessa's line "Curse you, unknown rocket helmet transportation thing!" is a parody of one of her father's catchphrases, "Curse you, Perry the Platypus!".
- This is the tenth episode with Candace's name in the title ("Lights, Candace, Action!", "Candace Loses Her Head", "Journey to the Center of Candace", "Oil on Candace", "Cheer Up Candace", "Candace's Big Day", "Candace Gets Busted", "Canderemy", "Run, Candace, Run").
- This is the second time Ferb is referred to as "chatty" ("Rollercoaster: The Musical!").
- Candace says "Meap" again ("The Fast and the Phineas", "It's a Mud, Mud, Mud, Mud World", "Backyard Aquarium").
- The bird that takes Candace's phone looks similar to a whale song-singing double-breasted angle hooper ("Perry Lays an Egg").
- This is the second time Candace is saved by Perry ("The Ballad of Badbeard").
- This is the second time someone doesn't understand a text message because it's not written with all the letters ("Unfair Science Fair Redux (Another Story)").
- The "Woot-Woot" is heard again in "Dance Baby" ("Phineas and Ferb Musical Cliptastic Countdown", "Make Play").
Magic Carpet Ride
- Pinhead Pierre makes another appearance ("Out of Toon").
- This is the first time Roger does something nice for his brother.
- This is the first time Isabella, Phineas, and Lawrence sing in Season 3. It is also the first time Lawrence and Isabella sing at the same time.
- The carpet is one of the few of the boys' creations that did not disappear at the end of the episode, as it settled back into place in the living room and is possibly still functional.
- Monogram's coffee cup has a heart on it and the O.W.C.A. logo in the back.
- This is the third time Lawrence is part of Phineas and Ferb 's big idea ("It's a Mud, Mud, Mud, Mud World", "Ladies and Gentlemen, Meet Max Modem!").
- Candace has a branch in her hair again ("Let's Take a Quiz").
- Lawrence says "Pinhead Pierre, eat your heart out" much like how Phineas says "Eat your heart out, Howard Hughes!" ("De Plane! De Plane!").
- This is the second time Phineas feels how soft the carpet is ("It's a Mud, Mud, Mud, Mud World").
- Doofenshmirtz traps Perry the same way he captures Major Monogram ("Phineas and Ferb: Summer Belongs to You!").
- This is the fourth time the "King of the World" homage is done ("Interview With a Platypus", "Swiss Family Phineas", "That Sinking Feeling").
- This is the sixth episode in which Doofenshmirtz succeeds on his scheme.("Hail Doofania!", "At the Car Wash", "Robot Rodeo", "Split Personality", "Candace Disconnected"). This is also the second time he regrets doing so ("At the Car Wash").
- This is the fifth time Perry fails to defeat Doofenshmirtz ("One Good Scare Ought to Do It!", "Hail Doofania!", "That Sinking Feeling", "Finding Mary McGuffin").
- The white ATV from the advert in "Finding Mary McGuffin" and "The Secret of Success" appears again.
- Balthazar Horowitz makes an appearance.
- The Danville lighthouse is seen again ("That Sinking Feeling", "The Belly of the Beast", "Phineas' Birthday Clip-O-Rama!").
- The Better Panda restaurant appears again ("It's About Time!").
Bad Hair Day
- Mrs. Johnson has her longest screen time so far in the series.
- Reginald Fletcher's mother appears as a guest in the Endangered Animals Benefit.
- Phineas and Ferb's big idea for the day, besides helping Candace with her hair, isn't mentioned.
- This is the first time Dr. Doofenshmirtz never got a chance to fire his inator.
- Phineas and Ferb have never been closer to Doofenshmirtz before. When he falls off the roof and is caught by Candace, she and her brothers have a direct look at him. Also, it's the fourth time Candace has had physical contact with Doofenshmirtz ("The Ballad of Badbeard", "Does This Duckbill Make Me Look Fat?", "Fireside Girl Jamboree").
- When Doofenshmirtz is singing "Shot in the Butt with a Dart", he mentions that he'd lose consciousness in 17 seconds, which is accurate in real time.
- Candace's ringtone is an orangutan sound. Previously, it was "Do Nothing Day" in "Backyard Aquarium".
- This is the second time Doofenshmirtz gets covered in a material so that he resembles a primate of some sort ("Get That Bigfoot Outa My Face!").
- Doofenshmirtz says "Is this hair?" when he gets covered in hair, which is what Candace says when she falls in the dumpster full of hair in "Phineas and Ferb Get Busted!".
- The Danville Tangerine Orangutan Preserve's waterfall is exactly the same waterfall Candace falls in while visiting Hawaii during "Phineas and Ferb Hawaiian Vacation".
- Danville Museum is seen again ("It's About Time!", "Greece Lightning", "Phineas and Ferb's Quantum Boogaloo").
- This is the second episode that elapses from day to night ("Chez Platypus").
- This is the third time a statue that resembles the famous discus thrower Discobulus is used ("Greece Lightning", "Phineas and Ferb: Summer Belongs to You!").
- This is the third time Candace's hair is distorted somehow ("It's About Time!", "Got Game?").
- Candace wears her pink dress from "Chez Platypus" again.
- Jeremy wears his tuxedo from "Gaming the System" and "That Sinking Feeling" again.
- The "Yes-man" from "Toy to the World" can be seen behind Mrs. Johnson when Candace makes her first appearance full with hair.
Meatloaf Surprise
- This episode shows that Linda, Candace, and Phineas all like meatloaf.
- This is the first time Phineas and Ferb's Big Idea is destroyed by Buford.
- It is revealed that Perry keeps grappling guns of every size.
- This is the first episode to have the word "surprise" in its title.
- The theme that plays at the beginning of this episode is the same one that was played at the beginning of "Rollercoaster", "Ain't No Kiddie Ride", "Wizard of Odd", and "Moon Farm".
- This is the second episode with a healthy food theme following "Candace's Big Day".
- This is the third time Doofenshmirtz ends an episode with "Wait, is that [band's name]?", after "Dude, We're Getting the Band Back Together" and "The Baljeatles".
- This is the fourth time Candace joins a band in their concert ("Ready for the Bettys", "Flop Starz", "The Best Lazy Day Ever"), and the first time outside of Season 1.
- This is the third time to show a character going to, or in a hospital. It is also the second time this happens to Dr. Doofenshmirtz ("I Scream, You Scream", "Nerdy Dancin'").
- The lady who has the opera glasses at the Little Cowboy auction in this episode reappears in "Happy New Year!" and the Milo Murphy's Law episode "Dog Walker, Runner, Screamer". In Milo Murphy's Law, she is seen at a ribbon cutting ceremony.
- Major Monogram considers both evil and non-evil explanations for Doofenshmirtz's meatloaf ingredient purchases much as he considers evil and non-evil explanations for Doofenshmirtz's sudden interest in recycling ("De Plane! De Plane!"). In the same way as with the ingredients purchases, Monogram offers likely and outlandish alternatives for Doofenshmirtz's disappearance ("One Good Scare Ought to Do It!").
- The Jeff "Swampy" Marsh caricature can be seen at the auction.
- Tiny Cowboy, the band mentioned in "Robot Rodeo", makes their first appearance.
- The Paisley Sideburn Brothers from "Fireside Girl Jamboree" are mentioned.
- The man running the meatloaf Ferris wheel is the same person who offered Candace his pants during "Mix and Mingle Machine" from "Cheer Up Candace" and who is at the front of the crowd in a Love Händel concert in "Just Passing Through".
- The girl seen in the announcement in "Phineas and Ferb's Quantum Boogaloo" can be seen among the other kids whose bounce house is destroyed.
- The man with weird accent from "Finding Mary McGuffin" can be seen in the audience.
- This is the third time Candace's phone is destroyed ("Greece Lightning", "Candace Disconnected").
Phineas and Ferb Interrupted
- This is the first time Buford and Baljeet sing in Season 3.
- This is the second time a song is used in both subplots at the same time ("I Scream, You Scream").
- This is the first episode where Carl appears without Major Monogram.
- This is the third time Major Monogram is absent in an episode ("Isabella and the Temple of Sap", "Canderemy").
- It is shown that Perry had already foiled Doofenshmirtz's scheme for the day before the episode starts.
- This is the third time the Apollo 13 phrase is referenced in the series ("Out to Launch", "Moon Farm").
- This is the second episode where Candace attempts to bust Phineas and Ferb by urging them to create something despite the boys not wanting to ("The Best Lazy Day Ever").
- Baljeet mentions "How nice the weather is" ("That Sinking Feeling").
- When Doofenshmirtz first reveals his Dull-and-Boring-inator in the video, he appears to have just finished a Broadway-style song. Most of Doofenshmirtz's songs tend towards extravagant showstoppers, as first seen in "My Goody Two-Shoes Brother".
- This is the second time Phineas and Ferb have lost their creativity, though the first time was in a dream. This is also the second time Phineas shows he's back to normal by saying "I know what we're gonna do today!" ("Phineas and Ferb Get Busted!").
- Doofenshmirtz is seen singing "Perry the Platypus" in his bathroom ("Misperceived Monotreme").
A Real Boy
- Rodney makes another appearance.
- Several things are revealed in this episode:
- Doofenshmirtz has come to think of Perry the Platypus as family.
- Doofenshmirtz may have bad breath.
- Rodney builds "-inizers" instead of "-inators".
- This is the first episode where Candace busts her brothers more than once.
- Perry and Dr. Doofenshmirtz break the fourth wall by looking directly in the camera when Dr. Doofenshmirtz says that he is not in a sitcom.
- Phineas and Ferb's invention doesn't disappear in this episode.
- This is the first episode to focus on Norm.
- This is the third time the Doofenshmirtz and Perry subplot is the main plot ("Hail Doofania!", "Brain Drain").
- This is the second time Doofenshmirtz Evil Incorporated shows up, but does not have the evil jingle play until later in the episode ("Finding Mary McGuffin").
- One of the female singers in the song is also seen in "Comet Kermillian" and "Candace Gets Busted", but with blonde hair. The other female singer is also seen in "Comet Kermillian", as well as in the "Mix and Mingle Machine" from "Cheer Up Candace".
- The music Norm listens to on the player sounds as if it could be the heavy-metal instrumental piece heard after the song "I'm Me" from "Vanessassary Roughness"; Vanessa also listens to it in her computer in "Finding Mary McGuffin".
- At the end of Norm's rap, he is in supposely in a huge blimp hangar. Phineas and Ferb use the same hangar in "Run, Candace, Run" to see if they can outrun light in their high-speed shoes.
- After Doofenshmirtz tells Norm that he isn't his father, Norm says "Bu-bu-bu-bu-but..." like Candace does during the song "There is No Candy in Me" ("Picture This").
- This is the third time someone says "I am not your father". The first time is Major Monogram's "daddy" in "Get That Bigfoot Outa My Face!" and the second time is Mitch in "The Chronicles of Meap".
- This is the ninth time Ferb doesn't talk.
- This is the second episode to begin at Doofenshmirtz Evil Incorporated ("Hail Doofania!").
- This is the third time Phineas and Ferb are "busted" ("Phineas and Ferb Get Busted!", "She's the Mayor").
- This is the second episode to end with someone in the dark ("Flop Starz").
- When Candace replies to Stacy what she is doing at the moment, she says "nothing", much like how Xavier says to Amanda in "Phineas and Ferb's Quantum Boogaloo".
- This is the last Phineas and Ferb episode to end with the Disney Channel Original logo.
Mommy Can You Hear Me?
- In the credits of this episode's sister episode, there's a text that reads "Featuring the Russian Vocal Stylings of Swampysky Marshkarov", which is a reference to Swampy Marsh's name and the fact that he voices a Russian character in this episode.
- When Candace clicks the remote, a Ducky Momo background appears. Candace also throws a Ducky Momo toy at the window ("Nerds of a Feather", "Phineas and Ferb Hawaiian Vacation", "Run, Candace, Run").
- Tiny Cowboy is mentioned again ("Robot Rodeo", "Meatloaf Surprise").
- Sergei is seen as an astronaut again ("Out to Launch", "Wizard of Odd").
- Stacy breaks the fourth wall when she looks at the audience and says "I am such an enabler".
- This is the second time Candace has to stay in bed due to illness ("Put That Putter Away").
- Isabella calls Linda Mrs. Flynn-Fletcher again ("Candace Loses Her Head").
- This is one of the few episodes where Candace's attempt to bust her brothers inadvertently saves someone's life.
- This is the fourth time Stacy tries to bust or help bust Phineas and Ferb ("Put That Putter Away", "Elementary My Dear Stacy", "Phineas and Ferb-Busters!").
- This is the fifth time Ferb speaks in unison. ("Put That Putter Away", "Just Passing Through", "Undercover Carl", "Phineas and Ferb-Busters!")
- As Candace changes the background with the remote, she is seen wearing a clown costume ("Cheer Up Candace").
- Lawrence asks "Hey, where's Perry?" again ("Comet Kermillian", "Out of Toon", "Tip of the Day", "Swiss Family Phineas", "The Belly of the Beast").
- Linda doesn't pay attention to Phineas and Ferb's invention because she is too busy gardening again ("At the Car Wash").
- This is the second time Candace is injured ("De Plane! De Plane!").
Road Trip
- This episode indicates that Candace has "Sleep Busted" before.
- Candace mentions that the trip took seven days, which is the most days accounted for in any single episode.
- It is revealed that the ingredient for Dr. Doofenshmirtz's invention's self-destruct feature is "Boom-Juice".
- The fourth wall is broken eight times by seven people:
- By Perry, who looks at the screen when Doofenshmirtz turns off the sound to the "early warning explosion button".
- By Lawrence, who looks directly at the screen when he says "woohoo!".
- By Ferb, who looks at the screen during "Little Bit of Home on the Road", after he sees the cat in the pot.
- By Phineas and Ferb, who, in a quick moment, look at the screen after showing out the real and fake butter and but-r.
- By Ferb again, who looks at the screen a second time during "Little Bit of Home on the Road" after he pulls the salt shaker out of the "fancy spice" can.
- By the guy who asks for pie, who looks at the screen when he says "I still never got my pie".
- By Candace and Linda simultaneously, who look at the screen after Lawrence abandons the wheel.
- By Doofenshmirtz, who is talking to the audience at the end, and looks directly at the screen when he says "flaming cactus".
- This is the regular-length episode with the most fourth wall breaks in the series, with a total of eight.
- Perry is interrupted again while on vacation ("Put That Putter Away", "Phineas and Ferb Christmas Vacation!").
- This is the second time Doofenshmirtz talks to Lawrence ("Finding Mary McGuffin").
- Candace pours beverages with her left hand and writes with her right hand. These acts indicate that she is ambidextrous.
- This is the tenth time Ferb does not talk.
- This is the second time jukeboxes are involved in some way ("Make Play").
- The crows return, as does the corn ("Wizard of Odd").
- The man who breaks his teeth in "Yodel Odel Obey Me" appears again ("Bubble Boys").
- This is the second time Perry gets annoyed of Candace's babble ("Oh, There You Are, Perry").
- This is the second time Perry is sitting in a vehicle that Doofenshmirtz is driving ("Unfair Science Fair").
- This is the second time Doofenshmirtz's pants are burned ("Moon Farm").
- This is the second time the Flynn-Fletcher family takes a trip ("Phineas and Ferb Hawaiian Vacation").
- This is the second time Phineas and Ferb open a restaurant ("Chez Platypus") and fifth time they charge money for their big idea ("Rollercoaster", "Chez Platypus", "The Lemonade Stand", "Rollercoaster: The Musical!").
- Doofenshmirtz is mistaken for a pharmacist again ("Run Away Runway", "The Ballad of Badbeard", Phineas and Ferb the Movie: Across the 2nd Dimension, "Brain Drain", "Skiddley Whiffers").
- This is the first Phineas and Ferb episode to end without the Disney Channel Original logo.
Phineas and Ferb the Movie: Across the 2nd Dimension
- It is possible that the Amnesia-inator left some parts of the memories in their brain, because Phineas, Baljeet, Buford, Isabella, and possibly Ferb were able to remember the song Summer (Where Do We Begin?) in "Fly On the Wall". And, Phineas was able to remember that they met their doppelgangers in the 2nd dimension and that Isabella kissed him.
- The scene from "Last Day of Summer" may also be a fourth wall break, as Phineas' next line is "You just wait ten years" referencing his and Isabella's kiss in "Act Your Age" which has chronologically yet to happen.
- Oddly enough, when Perry reveals his secret identity, Ferb does not show any signs of anger or any type of reaction. When Perry opens the window to escape the hideout, you can briefly hear Ferb saying "Ahhh" as they are falling. This is the only reaction Ferb gives to the situation, other than that, he seems to be quite calm throughout the scenario, even after discovering Perry's secret.
- When Perry punches Platyborg across the room, revealing his secret identity, Ferb's irises are shrunken and he's pulling back in shock.
- If you look closely, the Resistance HQ and Pinky's HQ from "Day of the Living Gelatin" , "Isabella and the Temple of Sap" and "Hail Doofania!. "Hail Doofania!", "At the Car Wash", "Robot Rodeo", "Split Personality", "Candace Disconnected", "Magic Carpet Ride" can be seen.
- This is one of those few times Doofenshmirtz actually succeeded in his scheme (traveling to alternate dimensions with his -inator).
- This is the sixth time Perry failed to defeat Doofenshmirtz (since he only wanted to travel to alternate dimensions, which was done by the help from Phineas and Ferb). First time was "One Good Scare Ought to Do It!", the second was in "Hail Doofania!", the third was in "That Sinking Feeling", the fourth was in "Hail Doofania!".
- Despite Monogram mentioning that Carl was a rookie in "I Scream, You Scream", the flashback shows that he has been working in the O.W.C.A. for years.
- This is the second time Phineas and Ferb are shown tied up and chained, the first was during "Phineas and Ferb Get Busted!"
- The fourth wall is broken several times:
- During Brand New Best Friend, both Doofenshmirtzes break the Fourth wall by mentioning that Meap was played by Lorenzo Lamas.
- They also look at the screen while saying this.
- Phineas breaks the Fourth wall by having his eyes staring directly at the screen during Summer (Where Do We Begin?).
- Phineas also breaks the Fourth wall by "cutting corners" when the movie arrives where it started ("Blah blah blah, two-car garage, etc."). Ferb also exclaims "Whoa, deja-vu-ish." in that same scene.
- On the DVD version, during the song Mysterious Force, in several shots, Candace is seen staring directly at the audience.
- During Brand New Best Friend, both Doofenshmirtzes break the Fourth wall by mentioning that Meap was played by Lorenzo Lamas.
- During the song Summer (Where Do We Begin?), Phineas begins to sing some of the lyrics from the Phineas and Ferb Theme.
- Isabella and Phineas kiss for the first time.
- This is one of the few times in which Phineas is angry.
- This is the first time that Ferb cries, though it is only briefly shown.
- Even though this is the longest running Phineas and Ferb event, Ferb has fewer lines than he did in others, such as "Phineas and Ferb: Summer Belongs to You!".
- This is the first time that the outside of the O.W.C.A Headquarters is shown.
- Carl is seen without his glasses for the first time.
- It is revealed that Carl used to wear braces, and Monogram had black hair.
- It is revealed that Ferb leads a double-life as well. Although it could have been a joke or a reference to Phineas and Ferb's double-life with making inventions without their mom knowing, or a reference to the "The Beak" or "Ready For the Bettys".
- Phineas bats left handed. In "Toy to the World" he writes left handed, and in "Phineas' Birthday Clip-O-Rama!" he says that he wants a left-handed flange tuner. The movie's video game also states he is left handed. From these examples it is clear that Phineas is left handed, but in "Don't Even Blink" he was shown to be ambidextrous as he played the guitar with both hands.
- It's revealed that Jeremy is 16, one year older than Candace as she is 15.
- Phineas notices how Doofenshmirtz Evil Incorporated building looks similar to Ferb's head.
- Right before "Brand New Reality", Ferb has a scared expression.
- A Goozim makes another appearance. Goozims previously appeared in "Got Game?" and "Rollercoaster: The Musical!".
- During the song Everything's Better with Perry, Perry is referred to as a monotreme for a third time ("Swiss Family Phineas", "Misperceived Monotreme") and the second time onscreen. ("Swiss Family Phineas")
- The "Homer's Odyssey" is seen again. It was previously seen in "Magic Carpet Ride".
- Like in "Interview With a Platypus", Phineas and Ferb imitate Perry's chatter again.
- This is the fifth time a much younger Phineas is seen, while it is the third for Ferb. Previous instances are in "Phineas and Ferb Get Busted!", "Oh, There You Are, Perry", "Phineas and Ferb: Summer Belongs to You! " and "Ain't No Kiddie Ride".
- Monogram says, "Behind you, rising dramatically from the floor" again. He first said it in "Tip of the Day".
- This is the second time Doofenshmirtz-1 makes a fake Perry the Platypus (Pretendy the Practicepus). The first time was in "Just Passing Through" when he made "Bobblehead Perry the Platypus".
- The man that is driving the tow was seen in "Phineas' Birthday Clip-O-Rama!" while the tow was seen in"Hip Hip Parade".
- Despite having a previous encounter in Candace's dream from "Wizard of Odd", and seeing him through a reprogrammed video game in "Brain Drain", this is the first time Phineas and Ferb actually meet Dr. Doofenshmirtz.
- This is the second time inter-dimensional travel is mentioned ("Phineas and Ferb's Quantum Boogaloo").
- Much like in "It's a Mud, Mud, Mud, Mud World", "Vanessassary Roughness", and "She's the Mayor", Doofenshmirtz's Inator is related to dimensions.
- This is second time Phineas and Ferb's Invention hit Doofenshmirtz' Inator, first was in "Candace's Big Day".
- This is the second time Dr. Doofenshmirtz has been seen as the ruler of a Tri-state Area since "Phineas and Ferb's Quantum Boogaloo".
- Doofenshmirtz refers Monogram as "Francis" again. He first called him "Francis" during "Phineas and Ferb Musical Cliptastic Countdown".
- Doofenshmirtz-1 interacts with himself for the second time. The first is in "Run Away Runway" when he made clones of himself.
- The song Brand New Best Friend is the third song in which two people appear getting dressed as different characters. The others were "Hey Ferb" from "Rollercoaster: The Musical!" and Just the Two of Us from "Canderemy".
- Doofenshmirtz and 2nd Dimension Doofenshmirtz sing together, the second time someone does a duet with himself/herself, the first being Candace during Me, Myself and I in "Split Personality".
- However, this is the first time this happens with two or more characters in a single episode (Phineas and Ferb in Summer (Where Do We Begin?). This is also the first time this happens more than once in a single episode/song.
- This is the fourth time Phineas and Ferb see Perry as a secret agent but the first time they don't mistake him for something else and know it's really Perry. They previously mistaken him for a toy in "Toy to the World". They once saw him in "Phineas and Ferb Get Busted!", but since the episode took place in Perry's dream, it didn't actually happen. They also mistaken him for a video-game character in "Brain Drain".
- Succeeding "Phineas and Ferb: Summer Belongs to You!", this is the second time Phineas gets genuinely angry about something.
- The skull that Perry gets his feet stuck in after they jump out the window has the same horns as Mr. Doofenshmirtz's headgear.
- This is the third time that Phineas and Ferb interact with Norm since "Greece Lightning" and "Traffic Cam Caper".
- Ferb carries a handkerchief with him, as does his other dimension counterpart, seen when other dimension Phineas is hugging Perry. Ferb previously brought a handkerchief in "Phineas and Ferb: Summer Belongs to You!".
- 2nd Dimension Isabella's uniform looks similar to the uniforms that 1st Dimension Isabella's troop wore when they parodied Howl in "Phineas' Birthday Clip-O-Rama!".
- Following "Phineas and Ferb's Quantum Boogaloo","Split Personality", "Rollercoaster: The Musical!", and "Make Play", this is the fifth time that two or more Candace's or someone identical to her are seen.
- Doofenshmirtz-2 says "I've got you and your little friends, too," parodying The Wizard of Oz, the same way Doofenwitch said "I'll get you, and your little platypus too" in "Wizard of Odd".
- Doofenshmirtz-2 has problems for seeing the hour of his watch much like his 1st Dimension counterpart in "Elementary My Dear Stacy".
- Candace mentions that something weird is not the weirdest thing. ("Wizard of Odd")
- The "If I had a nickel" line is used again. The line was previously used in "Wizard of Odd" and "Phineas' Birthday Clip-O-Rama!".
- Doofenshmirtz and Doofenshmirtz-2 say "oh, poop". 1st Dimension Doofenshmirtz said this in "Moon Farm".
- During the part where Ferb hot-wires the Norm bot, the Norm bot says that "I lost my bike", which may reference to the running gag in "Phineas and Ferb: Summer Belongs to You!", also could be an allusion to Norm's phrase (Have You seen my keys?) in "Greece Lightning".
- During Brand New Reality, one of the dimensions looks like the same background used during Carpe Diem and Izzy's Got the Frizzies in "Rollercoaster: The Musical!"' and "Robot Rodeo" respectively.
- Second time that Baljeet wonders why is Perry wearing a hat since "Wizard of Odd".
- Ben Baxter from "Flop Starz" makes a cameo.
- The man that asked the Too-Young Line in "Spa Day" is seen again, he also appeared "Phineas' Birthday Clip-O-Rama!".
- Third time Doofenshmirtz loses his keys ("One Good Scare Ought to Do It!", "Moon Farm").
- Love Händel makes another appearance.
- This is the second time Phineas and Ferb are seen in Perry's lair following "Ready for the Bettys".
- Phineas's line "Let's kick some robot chassis!" is similar to his line "Let's kick some robot hiney!" in "Traffic Cam Caper".
- Candace sees Perry as an agent again. She previously saw him in "The Ballad of Badbeard", "Phineas and Ferb Get Busted!", "Leave the Busting to Us!", "Bowl-R-Ama Drama", and "Wizard of Odd". However, this is the first time she gets her memory of seeing Perry as an agent erased. One of the other times was in Perry's dream, and Candace still remembers the other 4 episodes, including her own dream.
- Phineas, Ferb, Baljeet, Buford and Jeremy all see Perry as a secret agent in "Wizard of Odd" inside Candace's dream.
- Candace would later see Agent P once again on a jetpack in "The Remains of the Platypus".
- Animal agents of past episodes appeared such as Peter the Panda ("It's About Time!"), Pinky the Chihuahua ("Isabella and the Temple of Sap"), Agent E ("The Ballad of Badbeard"), Agent M ("Phineas and Ferb Musical Cliptastic Countdown"), Unnamed frog agent, Agent C ("Traffic Cam Caper").
- Buford's gladiator hat from "Greece Lightning" is seen again.
- Following "The Magnificent Few", "Out of Toon", "Hail Doofania!", "Isabella and the Temple of Sap", and "Ain't No Kiddie Ride", this is the sixth time Isabella is seen interested in horses/unicorns.
- Robot Riot, is the second song in this show to mention a "washing machine" in the lyrics, the other being Technology vs. Nature from "Perry Lays an Egg".
- Baljeet and Irving work together for the first time despite the fact that Baljeet doesn't like Irving in "Hide and Seek" and "Atlantis".
- Doofenshmirtz-1 finds the model train in a box marked, "VHS tapes." In "Tip of the Day" he gets rid of what he thinks is an unimportant box, but finds to his dismay that there was an embarrassing video inside.
- This is the second time Ferb says Perry's name. The first was when he said the "Where's Perry" line in "Fireside Girl Jamboree".
- This is the second time that Phineas, Ferb and Isabella meet Major Monogram and Carl. First was in "Undercover Carl".
- This is the third time that Baljeet meets Carl. First was "Swiss Family Phineas" and second was "Undercover Carl".
- This is the second time that Buford meets Carl. First was "Swiss Family Phineas".
- This is the third time Baljeet meets Monogram since "Undercover Carl" and "Wizard of Odd", the second time that Buford meets Monogram since "Wizard of Odd", the third time Jeremy sees Monogram since "The Lizard Whisperer" and "Wizard of Odd", and the second time Candace sees Monogram following "The Ballad of Badbeard".
- Carl states that Doofenshmirtz made an Amnesia-inator. Doofenshmirtz previously created -inators related to memory in "Tip of the Day" and "A Real Boy".
- This is the second time someone "Sweats out of their eyes" when they were really crying. The first was Buford in "Voyage to the Bottom of Buford".
- Much like in "Phineas and Ferb: Summer Belongs to You!", numerous images appear at the end of a song.
- Second time Phineas and Ferb are seen with military-style hairdos. ("Phineas and Ferb Get Busted!")
- Doofenshmirtz says, "Let's light this pop stand." This malapropism combines Phineas's take on astronaut Alan Shepard's "Let's light this candle" ("Out to Launch") and Candace's "Let's blow this pop stand" ("Wizard of Odd").
- Second time there is a fight between platypi ("Cheer Up Candace").
- The music playing when Carl begins presenting the gadgets to Perry is the same as the music when Phineas and Ferb were teaching Lawrence how to play 80's synthesizer ("Ladies and Gentlemen, Meet Max Modem!").
- Second time Doofenshmirtz (or his counterpart) calls his guards ("Wizard of Odd").
- Second time someone's memory is wiped to preserve Perry's identity ("I Was a Middle Aged Robot").
- In "Brand New Best Friend", Doofenshmirtz sings "Comin' at you Fridays!" Phineas and Ferb's regular timeslot is Friday nights on Disney Channel.
- This is the second time Phineas imitates the crowd cheering, the first was "The Chronicles of Meap", though this time, he's actually shown doing it.
- Only five of the songs in the movie (counting Mysterious Force) are sung by characters onscreen, the rest were just background songs. This marks the second least amount of songs sung by someone onscreen in a special, the least was "Phineas and Ferb: Mission Marvel" with only one song.
- The movie takes place sometime during the events of the third season.
- Despite being one of the characters who has their memory wiped with the Amnesia-inator at the end of the film, Stacy uncovers Agent P again in "Happy Birthday, Isabella".
- On Netflix, after Phineas says "So far, it's not going as well as we hoped", the screen fades to black as the end-of-episode guitar sound plays.
- It is unknown why Doofenshmirtz had to get his mind erased along with Phineas, Ferb, and the gang at the end of the movie as he is already aware that Perry is a secret agent, although this could be so he does not have the idea to create another invention to an alternate dimension again.
- It is also possible, that he had to get his mind erased so that he could forget about Perry's owners and never interact with them again and keep the secret agent identity safe this way since he wouldn't know about the pet side of Perry's double life, while the rest of the people who had their minds erased had to forget about the agent side of Perry's double life.
- This is the second time Perry's litter box is mentioned ("Phineas and Ferb Hawaiian Vacation").
- On Disney+, the version that is shown is the Disney Channel broadcast version.
Tour de Ferb
- Linda and Candace see Doofenshmirtz, or at least his picture.
- This episode shows the logo of the Tri-State Area for the first time in a regular episode, after it is revealed in Phineas and Ferb the Movie: Across the 2nd Dimension.
- This is the first time Mr. Tjinder and Gertrude Zupermühltienatör appear.
- Radio Disney's "Get Animated with Phineas and Ferb" contest winner appears in this episode as a brown-haired Fireside Girl.
- Phineas and Ferb's bathroom is seen again ("The Bully Code").
- This is the fourth episode with a song continued in the end credits ("I Scream, You Scream", "The Best Lazy Day Ever", "Tip of the Day").
- Not counting the Spot the Diff episode "The Fast and the Ferbulous: Danville Drift", this is the second episode to have only Ferb's name in the title ("Invasion of the Ferb Snatchers").
- This is the sixth time Baljeet rides something ("Put That Putter Away", "Bowl-R-Ama Drama", "Just Passing Through", "Ain't No Kiddie Ride", "Phineas and Ferb: Summer Belongs to You!").
- This is the third time Phineas and Ferb teach Baljeet to do something ("Unfair Science Fair", "The Baljeatles").
- The movie "That Darn Fiancé" that Linda and Lawrence watched is seen again (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Ducky Momo appears on Candace's knee pads ("Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Run, Candace, Run", "Mommy Can You Hear Me?").
- This is the second episode where Isabella has only one line of dialogue (Flop Starz").
- The baseball stadium appears again ("Backyard Aquarium").
- This is the second time Candace falls from a waterfall ("Phineas and Ferb Hawaiian Vacation").
- This is the fourth time Doofenshmirtz is caught by his own trap ("Ain't No Kiddie Ride", "Journey to the Center of Candace", "What Do It Do?").
- Candace uses the same helmet from when she goes to visit Jeremy ("One Good Scare Ought to Do It!").
- The horned frog makes an appearance ("The Best Lazy Day Ever").
- Baljeet mentions not being able to put his foot behind his head, something Django Brown claims to be able to do ("Jerk De Soleil").
- The triangle in Phineas' bike is a reference to the shape of his head.
- This is the second instance of someone wearing a hat under another hat. The first was Isabella in "The Beak" when she wears her fedora under her bike helmet.
- This is the second time someone only wears a towel for the majority of their screentime. The first was Candace in "Gaming the System".
Skiddley Whiffers
- This episode reveals several things:
- Vanessa and her friends are all allergic to bee stings.
- Candace is a fan of Skiddley Whiffers and is very good at it.
- Phineas' third favorite number is five.
- Ferb has lived with Phineas and Candace for at least six years.
- Perry has entered his lair 999 times.
- Doofenshmirtz always sees Vanessa as a child.
- The Tri State Area has an almanac that was released in 1972.
- This is the first time Vanessa says the "Too Young" line. She did it twice in the episode.
- This is the first time Vanessa's voice as a child is heard.
- When Doofenshmirtz reveals the fire hydrant logged in his leg, his underwear can be seen.
- This is the sixteeneth episode in which Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run, Candace, Run", "Candace Disconnected").
- This is the third time Vanessa is seen as a child ("Dude, We're Getting the Band Back Together", "Finding Mary McGuffin").
- This is the second time Doofenshmirtz gets covered in honey, only this time it's voluntarily ("Bad Hair Day").
- Candace ruins Doofenshmirtz's invention again ("Ain't No Kiddie Ride").
- This is the second time Perry saves Doofenshmirtz from water ("Split Personality").
- This is the second time Doofenshmirtz is seen with an allergic reaction ("Atlantis").
- This is the second time Perry is seen playing the bass (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time someone "picks the nose" ("The Lake Nose Monster").
- Major Monogram and Carl have a party for Perry again ("Bubble Boys", "Misperceived Monotreme").
- This is the third time an episode starts with an advertisement ("Toy to the World", "Attack of the 50 Foot Sister").
- This is the third time Agent P helps Doofenshimrtz in a project involving his daughter Vanessa ("Dude, We're Getting the Band Back Together", "Brain Drain").
- The song "Kronk for Hire" plays again ("It's a Mud, Mud, Mud, Mud World", "Mom's Birthday", etc.).
- This is the sixth episode with a big idea based on a game, puzzle, or activity ("Bowl-R-Ama Drama", "We Call it Maze", "Brain Drain", "Got Game?", "Let's Take a Quiz").
- The unicorn is similar to the one Isabella is on in "Ain't No Kiddie Ride" and Phineas and Ferb the Movie: Across the 2nd Dimension, but in yellow.
- Candace's music room is seen again ("Mom's Birthday").
- This is the first time Lacie speaks.
- This is the fifth time Doofenshmirtz can recognize Perry without his hat ("I Scream, You Scream", "Get That Bigfoot Outa My Face!", "It's About Time!", "Oil on Candace").
- This is the second time Candace crosses paths with Doofenshmirtz and Perry without seeing them ("Ain't No Kiddie Ride").
My Fair Goalie
- The "dun-dun-dun" sound is heard a total of six times in the episode.
- Phineas breaks the fourth wall by saying "We'll be right back" before a commercial break, and by fixing the time of day of the flashback. He and Ferb also break the fourth wall by staring at the camera after some dramatic music plays and zooms in.
- This episode reveals several things:
- Jeremy's family is from Wisconsin, and Jeremy is an Anglophile.
- Major Monogram is a fan of Ducky Momo.
- Ferb has a blog, according to Adrian.
- This episode marks the first time Ferb says his own name.
- This is the first time Perry is seen sitting cross-legged.
- At least one line from My Fair Lady has been used before in "Phineas and Ferb: Summer Belongs to You!". Also, music from "Phineas and Ferb: Summer Belongs to You!" is played in this episode; the instrumental played when the kids jump the ramp on their bikes is played here when Ferb attempts the last shot of the game.
- This is the third time Isabella is seen wearing yellow ("Mom's Birthday", "At the Car Wash").
- This is the second time any one of Ferb's cousins appear in an episode ("Invasion of the Ferb Snatchers").
- This is the second time Candace wears British-style clothes with white gloves ("The Flying Fishmonger").
- This is the third time Candace changes something in her appearance because of Jeremy ("One Good Scare Ought to Do It!", "Boyfriend From 27,000 B.C.").
- This is the fourth time Phineas and Ferb make a sports event ("Crack That Whip", "Got Game?", "Put That Putter Away").
- This is the second time Isabella puts her hair in a ponytail ("Jerk De Soleil").
- This is the second time Candace attempts to speak in a British accent ("A Hard Day's Knight").
- This is the second time Doofenshmirtz makes an inator related to his name ("Ain't No Kiddie Ride").
- This is the sixth overall time Ferb gets interrupted mid-sentence, and the third time he is not given a chance to speak at all ("Get That Bigfoot Outa My Face!", "Vanessassary Roughness", "Undercover Carl", "Nerds of a Feather", "We Call it Maze").
- This is the second time a member of the Flynn-Fletcher family is cursed. The first was Candace in "Hip Hip Parade".
- Ducky Momo is mentioned again ("Nerds of a Feather", Phineas and Ferb Hawaiian Vacation", "Run, Candace, Run", "Mommy Can You Hear Me?", "Tour de Ferb").
- This is the second time Jeremy says "That's my girl" after Candace says that she is going to bust the boys ("A Real Boy").
- This is the third time a nose-theme is related to the Fletcher family; the first time is when the Flynn-Fletcher Family went to the Lake Nose for vacation in "The Lake Nose Monster" and the second time is when the kids play Skiddley Whiffers, and Ferb chooses the nose.
- This is the second time Baljeet is seen playing soccer. The first was in a flashback in "That Sinking Feeling".
- This is the third episode where someone is hit in the groin. ("Cheer Up Candace", "Moon Farm").
- This is the second time Doofenshmirtz rings Monogram ("Hide and Seek").
- This is the third time Perry shoots Doofenshmirtz's inator to itself ("Fireside Girl Jamboree", "Just Passing Through").
- If one looks closely at Doofenshmirtz, one can see that he is in his underwear, making this the sixth episode Doofenshmirtz is in his undergarments ("Lights, Candace, Action!, "Tip of the Day", "Bubble Boys", "Nerds of a Feather", "Run, Candace, Run").
- This is the second time Ferb says "Not taking a chance" ("Greece Lightning").
- This is the fourth time Candace says "Ew" ("Candace Loses Her Head", "The Fast and the Phineas", "Day of the Living Gelatin").
- The cowboy from "The Magnificent Few" can be seen in the CD Baljeet gives to Ferb.
Bullseye!
- Rodney appears for the fourth time in this episode ("Nerdy Dancin'", "Robot Rodeo", "A Real Boy").
- Rodney is revealed to be from South Dakota.
- Rodney makes an izer instead of an inator, implying that he makes "izers" instead of inators, as seen in "A Real Boy".
- This is the fifth one-word episode. The others were "Rollercoaster", "S'Winter", "Atlantis", and "Canderemy". It is also the second one-word episode in Season 3, after "Canderemy".
- This is the second time Linda dismisses Candace for being rude ("One Good Scare Ought to Do It!").
- This is the fourth time Candace lets out a long "no" when the invention disappears or is about to ("Invasion of the Ferb Snatchers", "Road Trip", "Tour de Ferb").
- In the swimsuit competition, Doofenshmirtz is seen doing the exact same thing as in the viral video from "Tip of the Day".
- This is the first time Candace mistakes something someone other than Phineas and Ferb made for what they did.
- Perry makes a sighing sound a total of four times in this episode.
- This is the seventh time Doofenshmirtz is seen in his underwear. ("Lights, Candace, Action!", "Tip of the Day", "Bubble Boys", "Nerds of a Feather", "Run, Candace, Run", "My Fair Goalie")
- This is the fourth time Mount Rushmore is mentioned ("Rollercoaster", "Candace Loses Her Head", "Rollercoaster: The Musical!").
- This is the sixth time Candace doesn't see the boys' invention ("The Ballad of Badbeard", "Hail Doofania!", "Atlantis", "The Lemonade Stand", "Brain Drain").
- This is the fourth time Perry is threatened to be relocated ("Phineas and Ferb Get Busted!", "Oh, There You Are, Perry", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the seventeenth time Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run Candace Run", "Candace Disconnected", "Skiddley Whiffers").
- This is the third time Isabella refers to Linda as Mrs. Flynn-Fletcher ("Candace Loses Her Head", "Mommy Can You Hear Me?").
- When Lawrence sees the boys, some clips from past episodes are shown. Some include "I Was a Middle Aged Robot", "Magic Carpet Ride", "The Lake Nose Monster", "Dude, We're Getting the Band Back Together", "Phineas' Birthday Clip-O-Rama!", "Oh, There You Are, Perry", "Ladies and Gentlemen, Meet Max Modem!, and "Candace Loses Her Head".
- This is the third time Heinz interacts with Lawrence ("Finding Mary McGuffin", "Road Trip").
- The mad scientist from "Does This Duckbill Make Me Look Fat?" appears again.
That's the Spirit
- This episode reveals that Doofenshmirtz hasn't lost the extra pounds he mentions in "Fireside Girl Jamboree".
- The Time Machine cleaner appears again ("Phineas and Ferb's Quantum Boogaloo").
- It is never revealed how Doofenshmirtz gets turned back to normal.
- Linda does not appear nor is mentioned in this episode.
- When Isabella says that she is not wearing a costume, someone with a Giant Floating Baby Head costume is seen in the background.
- This is the first time that the Doofenshmirtz Evil Incorporated jingle does not include "After hours" when played at night.
- This is the second episode to take place entirely at night ("Candace Gets Busted").
- This is the second episode to not take place during the summer, the first being "Phineas and Ferb Christmas Vacation!". It is also the first of three episodes not to take place during a seasonal break from school, followed by "Druselsteinoween" and "Doof 101".
- This is the third Halloween-themed episode, but the first one to actually take place on Halloween ("One Good Scare Ought to Do It!", "The Monster of Phineas-n-Ferbenstein").
- This is the second time Ferb wears a Frankenstein's monster costume ("One Good Scare Ought to Do It!").
- Buford is dressed as a pirate again ("The Ballad of Badbeard").
- This is the fifth time Phineas is scared ("Are You My Mummy?", "One Good Scare Ought to Do It!", "Traffic Cam Caper", "Gaming the System").
- Another version of the theme song is shown. Candace's line, "Mom, Phineas and Ferb are making a Halloween special!", is similar to her line, "Mom, Phineas and Ferb are making a Christmas special!", in "Phineas and Ferb Christmas Vacation!".
- Isabella is not seen with her signature bow for an entire episode again ("The Beak").
- This is the second time Carl pretends to be Major Monogram ("Atlantis").
- This is the second time Carl is seen without glasses (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Baljeet says "Where's Perry?" ("Bowl-R-Ama Drama").
- A mummy that looks exactly like the one Phineas and Ferb find appears in the beginning of the episode ("Are You My Mummy?").
- Many monsters from the Best Monster Contest appear in the background when Phineas, Ferb, and their friends are walking in the sidewalk ("The Monster of Phineas-n-Ferbenstein").
- The Danville park is seen again ("Bubble Boys", "Isabella and the Temple of Sap").
- The farm where Heinz gets the cow to eat grass is similar to the area in "Ain't No Kiddie Ride" when Candace goes through the barn.
- The images of the title sequence are from "One Good Scare Ought to Do It!", "The Monster of Phineas-n-Ferbenstein", and the Original Pitch.
- This is the second time Phineas says "cool" and someone else says "no, not cool" ("Unfair Science Fair").
- This is the third time Perry enters into his lair with a costume ("Jerk De Soleil", "Boyfriend From 27,000 B.C.").
- Major Monogram is seen wearing something that is not his uniform again ("The Monster of Phineas-n-Ferbenstein", "Crack That Whip", "Phineas and Ferb Christmas Vacation!", "Undercover Carl", "The Beak", "Phineas and Ferb Hawaiian Vacation", "The Belly of the Beast").
- This is the second time a member of the Doofenshmirtz family turns into a monster and goes on a rampage. The first time was when Jekyll Doofenshmirtz turns into a monster in "The Monster of Phineas-n-Ferbenstein".
- This is the third time Monogram is mentioned with a "monobrow" ("Spa Day", "Phineas and Ferb: Summer Belongs to You!").
- This is the third episode that heavily involves cows ("The Magnificent Few", "Moon Farm").
- The guard of Mount Rushmore can be seen during the "Steak any rarer" part of "Were-Cow" ("Candace Loses Her Head").
- One of the zombies has the same hairstyle as Doofenshmirtz's ex-girlfriend ("Chez Platypus").
- This is the second episode to not show Candace's normal hair ("Got Game?").
- This is one of the few times someone does not say "Oh, there you are, Perry!".
- In the United States, the full episode, alongside "The Curse of Candace", was posted on the official Disney XD YouTube channel on October 4, 2021.[1]
- In 2023, Disney Television Animation ranked this episode as their #8 most spooky episode on their Twitter page.[2]
The Curse of Candace
- Phineas remarks how it seems to be more than 104 days since the start of their summer, which is intended to poke fun at the show's nature and continuity.
- Candace is startled to see a steak, which may be because of the similarity between the words "steak" and "stake", the latter of which being a weapon used to kill vampires.
- In most of the times Candace is seen as a "vampire", especially in the last few seconds leading to her disintegration to dust, small bags can be seen underneath her eyes.
- Isabella's plant is named Bambina, which is not only a play on the word "bamboo", but it means "little girl" in Spanish.
- This is the eleventh episode with Candace's name in the title ("Lights, Candace, Action!", "Candace Loses Her Head", "Journey to the Center of Candace", "Oil on Candace", "Cheer Up Candace", "Candace's Big Day", "Candace Gets Busted", "Canderemy", "Run, Candace, Run", "Candace Disconnected").
- This is the second time someone says that an actor of a movie is cute, the first is Candace in "Invasion of the Ferb Snatchers".
- When Perry enters his lair, Major Monogram is playing "Jump and Duck" ("Gaming the System").
- Candace says "Get off me!" again ("Lights, Candace, Action!"). In a similar fashion, Carl screams when Major Monogram touches his ear while Carl is thinking of brown recluse spiders ("Bad Hair Day").
- This is the fourth time someone gets hit in the groin, and the third time it's Doofenshmirtz ("Cheer Up Candace", "Moon Farm", "My Fair Goalie").
- This is the second time Ferb tries to protect himself from Candace ("Greece Lightning").
- Tiny Cowboy is mentioned again ("Robot Rodeo", "Meatloaf Surprise").
- The boys of the song "Flawless Girl" appear again ("Attack of the 50 Foot Sister").
- Dr. Doofenshmirtz traps Perry's feet on the floor again ("The Flying Fishmonger").
- The Slushy Dawg restaurant appears again ("The Bully Code").
- "Kronk for Hire" is heard again.
- South Dakota is mentioned again ("Bullseye!").
- This is the third time Major Monogram plays a video game ("That Sinking Feeling", "Finding Mary McGuffin").
- In the United States, the full episode, alongside "That's the Spirit", was posted on the official Disney XD YouTube channel on October 4, 2021.[3]
Escape from Phineas Tower
- This is the first time the Flynn-Fletcher Antique store is seen since "Phineas and Ferb's Quantum Boogaloo".
- This is the first time the other members of the gang turn down an offer from Phineas and Ferb to try out their invention.
- This episode marks the first time Roger talks in one of Doofenshmirtz's flashbacks.
- This is the first time Phineas doesn't want Ferb to show off when he unties Phineas with his feet.
- This is the second time Phineas and Ferb escape from their own invention ("We Call it Maze").
- This is the fourth time the boys build a tall tower ("Thaddeus and Thor", "The Doof Side of the Moon", "Candace Disconnected").
- This is the third time the boys are chained ("Phineas and Ferb Get Busted!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the fourth episode with only Phineas' name in the title ("The Fast and the Phineas", "Swiss Family Phineas", "Phineas' Birthday Clip-O-Rama!").
- This is the second time Phineas and Ferb build a computer generated/controlled invention ("We Call it Maze").
- The picture that Ferb holds when Phineas tells the tower about Meap is the same picture that Doofenshmirtz holds during the song "Brand New Best Friend" (Phineas and Ferb the Movie: Across the 2nd Dimension).
- When Phineas and Ferb get trapped under the dome, Phineas says "I'm feeling such an odd mixture of pride and mortal terror". This is what Doofenshmirtz says in "Phineas and Ferb-Busters!".
- Candace mumbles to bust Phineas and Ferb while sleeping again ("Road Trip").
- This is the third time someone plays with a ball in "jail" ("Robot Rodeo", Phineas and Ferb the Movie: Across the 2nd Dimension).
- The Giant Floating Baby Head appears again.
- Phineas and Ferb's invention becomes unruly thanks to Doofenshmirtz again ("Day of the Living Gelatin").
- The Teen Preen magazine is seen again ("Don't Even Blink", "Invasion of the Ferb Snatchers").
- This is the second time Doofenshmirtz builds a machine to change how his brother acts ("Misperceived Monotreme").
- This is the fifth episode where Candace doesn't see Phineas and Ferb's big idea ("Hail Doofania!", "Atlantis", "Brain Drain", "Bullseye!").
- Perry uses a magic trick to enter his lair again. ("Traffic Cam Caper")
- Nostradamus is mentioned again ("Ain't No Kiddie Ride").
Lotsa Latkes
- It is revealed that Isabella has a grandmother named Nana Shapiro.
- This is the first time Linda mentions Jenny's name.
- Doofenshmirtz tries to have an army of Spartan warriors in the same way he wants an army of monkeys in "Swiss Family Phineas", of babies in "The Baljeatles", and of Dodo birds in "Last Train to Bustville".
- Candace uses her bike again ("The Magnificent Few", "Just Passing Through", "Tour de Ferb").
- This is the second time the Tri-State Area is under chaos (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Baljeet and Buford sing together again ("Phineas and Ferb Interrupted", "Atlantis", etc.).
- Sock puppets are used again (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Ferb crosses words off a list again ("Last Train to Bustville").
- The man with the comb-over reappears (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Two of the senior citizens appear in previous episodes:
- Arlene
- One of the men is seen standing under a light bulb in the Better Panda restaurant ("Magic Carpet Ride").
- The old adage not to "Look a gift horse in the mouth" is said again, only this time it is parodied as "Don't look a gift horde in the mouth" ("Don't Even Blink").
- Buford says he is both proud and ready to soil his pants in terror. This resembles a line previously said by Doofenshmirtz and Phineas, "I'm both filled with pride and mortal terror!" ("Phineas and Ferb-Busters!", "Escape from Phineas Tower").
- This is the eighth time Doofenshmirtz is mistaken for a pharmacist ("Run Away Runway", "The Ballad of Badbeard", "Brain Drain", "Road Trip", Phineas and Ferb the Movie: Across the 2nd Dimension, "Skiddley Whiffers", "Bullseye!").
Ferb Latin
- Ferb breaks the fourth wall by looking at the audience and announcing that their Dad works in the antique business.
- It is revealed that Linda has a "Sensory Deprivation Tank".
- While Phineas is explaining the rules to Isabella, an instrumental version of "Ferb Latin" can be heard.
- This is the third episode with only Ferb's name in the title ("Invasion of the Ferb Snatchers", "Tour de Ferb").
- This is the second time Candace goes to a spa ("Spa Day").
- Doofenshmirtz tries to use publicity in his scheme again ("The Beak", "Tour de Ferb").
- Annabelle Johnson's husband makes a cameo, as does Ben Baxter, Lulu Jones, Buford's replacement nerd, and one of the singers from "Real Boy".
- The Flynn-Fletcher house's bathroom appears for the third time ("The Bully Code", "Tour de Ferb").
- Two verses of a song are sung at the same time again ("Picture This", "Phineas and Ferb Interrupted", "The Doof Side of the Moon").
- This is the second time Phineas says "By jove I think she's got it" ("Phineas and Ferb: Summer Belongs to You!").
- Irving hides behind a fence again ("The Curse of Candace").
- "Oh, Phineas!" is said again. ("That Sinking Feeling", "Phineas and Ferb: Summer Belongs to You!", "Canderemy")
- This is the fifth time the boys don't create some kind of contraption ("The Best Lazy Day Ever", "Tip of the Day", "Vanessassary Roughness", "Brain Drain").
- During the song "Ferb Latin", Phineas wears the same hat that he wears in "Escape from Phineas Tower".
- Doofenshmirtz says "Slap Yourself" again ("Brain Drain").
A Phineas and Ferb Family Christmas
- The cabin depicted on the calendar is the one Phineas and Ferb are in.
- More of Isabella's family appears in this episode, including Nana Shapiro ("Lotsa Latkes") and possibly her father.
- This episode happened sometime in July.
- This episode has sometimes been paired with the Season 1 episode "S'Winter". This is because of the necessity that Disney has that episodes regularly air within 30 minute time slots, and S'Winter fills in an extra 15 minutes of the time slot on the channel.
- Isabella wore the most winter outfits than all of her other winter episodes combined.
- It is possible the line "12th annual Phineas and Ferb Family Christmas" reveals Phineas and Ferb might be at least twelve years old, or it could have just been part of their effort to make it seem more realistic.
- Isabella's hair style is different during the second verse of "Let it Snow, Let it Snow, Let it Snow".
- It is unknown why Isabella's lines in "We Wish You A Merry Christmas" in the Latin-American version got switched.
- This episode marks the first time Vivian appears in Season 3.
- Irving can play the French horn.
- This is the second Christmas episode of the series. The first was "Phineas and Ferb Christmas Vacation!".
- This is the third time the boys do something to cool off. Previously were in "Lawn Gnome Beach Party of Terror" and "S'Winter".
- Isabella wears similar clothes that she wore in "S'Winter". The winter hat she wears at the end credits is the same one she wore in "Phineas and Ferb Christmas Vacation!"
- Phineas says that this is the best Christmas ever, in the same way that Doofenshmirtz said in "Phineas and Ferb Christmas Vacation!".
- Carl salutes again like in "Swiss Family Phineas" and "Undercover Carl".
- Carl takes part of one of Phineas and Ferb's ideas again ("Undercover Carl").
- Fourth time someone of the Flynn-Fletcher family (excluding Perry) sees Carl ("Comet Kermillian", "Undercover Carl", Phineas and Ferb the Movie: Across the 2nd Dimension). Also, this is the 4th time someone of their friends see him ("Undercover Carl", "Swiss Family Phineas", Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz also made a Transportinator in the game Transport-inators of Doooom!.
- This is the second time Isabella plays a violin. She played the violin during "Let's Take A Rocketship To Space" on "Out to Launch".
- Since "Phineas and Ferb Christmas Vacation!" occurs in the winter after this summer, Doofenshmirtz has not yet been given a reason to hate Christmas and it's reasonable for him to want to get his "yuletide on."
- This is the sixth episode with the song continued in the end credits, the others being "Busted", "Do Nothing Day", "Hail Doofania!", "A-G-L-E-T" and "Tour de Ferb".
- This is the second episode where Phineas is worried about Perry's whereabouts. ("Oh, There You Are, Perry")
- Third time Isabella wears something that does not match the color of her bow. If you look closely, the dress she's wearing is slightly darker than the bow. ("Lawn Gnome Beach Party of Terror", "Candace Loses Her Head")
- The Disney Channel Original logo does not show up in the end.
- On Disney+ the 'A' in the title is moved to the end.
- This episode makes Phineas and Ferb the third Disney Television Animation series to have two Christmas episodes, the first two being Teacher's Pet and House of Mouse.
- If one also counts Doug due to it having its first Christmas episode during its original Nickelodeon run, then Phineas and Ferb is the fourth Disney Television Animation series to have a second Christmas episode.
Tri-Stone Area
- This is the only episode where the characters don't speak English, except for Phineas and Ferb discussing their new language, and the only time where the characters are unintelligible.
- This episode may explain how Conk ended up frozen in an iceberg in "Boyfriend From 27,000 B.C.". Conk became distracted while the boys rode by, and the wall of ice snuck up on him and trapped his foot.
- This is the first episode to show Gretchen without glasses, Adyson without a hairband, and Katie with loose hair.
- Gretchen is the only character who does not wear glasses, while the prehistoric versions of Lawrence, Roger, Carl, and Bobbi are all seen wearing glasses.
- Carl's prehistoric version is the only one that is a monkey instead of a human.
- When Can-tok runs through the bushes, her hair is briefly changed to the way her future counterpart's hair looks.
- Phinabunk feeding stone tablets to Bunka reflects how real platypuses eat, using rocks in their mouth to chew their food.
- The fourth wall is broken when Dan says Swampy's part of the episode is hard to understand, and Swampy says that's a good reason why they're doing the stop-motion pictures showing themselves in the episode.
- This is the first time both Dan and Swampy are featured on-screen.
- When Can-tok tells Phinabunk and Gerb that she is in charge, Phinabunk looks confused, points at the sky and asks "Can-tok in charga? Du mhakka satellakkah?". This is a reference to when Candace would be in charge if a satellite crashed into the house ("Rollercoaster", "Rollercoaster: The Musical!").
- This is the fourth time cave-people are seen. ("Boyfriend From 27,000 B.C.", "It's About Time!", "Rollercoaster: The Musical!").
- Isabella expresses annoyance with others using her catchphrase again ("Out of Toon", "Phineas and Ferb Christmas Vacation!", "Suddenly Suzy"). This is the second time Buford uses her catchprase ("Out of Toon").
- In the photo-animation scenes, the Perry the Inaction Figure is seen ("Toy to the World").
- In the photo-animation scenes, a picture of Phineas and Ferb in underwear is seen ("Out to Launch").
- Conk reappears ("Boyfriend From 27,000 B.C.").
- This is the second time a live-action character is used, the first is Ashley Tisdale in "Lights, Candace, Action!".
- Bobbi Fabulous makes a cameo and is shown again as a hair dresser ("Dude, We're Getting the Band Back Together").
- The SUV from "Finding Mary McGuffin" and "The Secret of Success" appears on a stone-print.
- This is the second time someone makes a new language ("Ferb Latin").
- Doofenshmirtz cannot recognize Perry without his fedora again, but this time, his prehistoric version cannot recognize Bunka without his skull hat ("Lawn Gnome Beach Party of Terror", "Does This Duckbill Make Me Look Fat?", "Attack of the 50 Foot Sister", "The Lemonade Stand").
- This is the second time 27,000 B.C. is brought up ("Boyfriend From 27,000 B.C.").
- This is the second time Perry or a version of him does not escape from his trap ("Lotsa Latkes").
Doof Dynasty
- Ferb, Buford, and Candace break the fourth wall by knowing that there's a ripple effect.
- This is the first episode in which Candace doesn't turn to see any big idea. Instead, she knows it disappeared thanks to Linda's dialogue.
- Candace doesn't interact with her brothers in this episode. Phineas and Ferb also don't interact with Linda and Lawrence in the episode.
- Doofus Khan making fun of the key placement on the terracota warrior being too obvious is a nod to his future version putting obvious self-destruct buttons on his inators.
- This is the last episode to end with a logo identifying the production studio as "Walt Disney Television Animation".
- This is the third episode to have the word "Doof" in its title ("Hail Doofania!", "The Doof Side of the Moon").
- Candace is trying to bust her brothers because the technology they use for their big ideas is far too advanced for their time. Some of the technology didn't get introduced until the 20th century.
- In the song "The Way of the Platypus", it is mentioned that Platypuses sweat milk, which is also mentioned in "Does This Duckbill Make Me Look Fat?".
- The Great Wall of China appears again ("Not Phineas and Ferb", "Phineas and Ferb: Summer Belongs to You!").
- This is the second time a Chinese finger trap ensnares someone ("It's a Mud, Mud, Mud, Mud World").
- This is the second time a terracotta warrior is seen ("Thaddeus and Thor").
- The music that plays during Master Perry's "rippling" is the same music heard in the steam room at O.W.C.A headquarters ("She's the Mayor").
- "Googly moogly!" is said again ("Ready for the Bettys", "Phineas and Ferb Musical Cliptastic Countdown").
Excaliferb
- This episode is sometimes referred as "Excaliferb!"
- Despite being a story, this is Charlene Doofenshmirtz's first actual appearance in Season 3.
- It is also the only time in the series that she is seen without her glasses.
- Major Monogram has a diploma during his day in "The Academy" which was mentioned in "Get That Bigfoot Outa My Face!"
- This episode reveals that not only Major Monogram has a pair of green pajamas with sheep on it, but also owns a teddy bear wearing a fedora.
- This is the second episode where only two people appear in real life (Carl and Monogram), where the rest of the characters are inside the story ("Phineas and Ferb Get Busted!"). This is also the first episode where the story begins with Major Monogram and Carl's perspective.
- This episode features the longest Evil Jingle.
- Even though it happens in a story, this is the first time that Isabella sees Professor Poofenplotz.
- The term "Shepherd spy" is a pun on the food "Shepherd's pie".
- Though only a story, Ferb says his longest line in Season 3. This is his second-longest line in the series, the longest being in the Season 2 episode "The Lizard Whisperer".
- Phineas and Ferb-a-lot, using their elixirs, transform into various Greek Mythology creatures. Phineas turns into a manticore, a phoenix and a minotaur; while Ferb-a-lot turns into a cockatrice, a cerberus and a gorgon.
- Malifishmertz turns into a combination of a giant minotaur, and a five-headed Hydra.
- After "Invasion of the Ferb Snatchers", "Tour de Ferb", and "Ferb Latin", this is the fourth episode with only Ferb's name in the title.
- This is the 6th one-word episode. The others were: "Rollercoaster", "S'Winter", "Atlantis", "Canderemy", and "Bullseye!". It is also the first one-word 2-part episode overall.
- The family's goose is named Gertrude; Candace's middle name is Gertrude.
- Second time Major Monogram was sick. ("My Fair Goalie")
- Strangely, Monogram's house looks like Irving's house in "Not Phineas and Ferb".
- Professor Poofenplotz makes her third appearance, although this time it's an alternate version. ("Isabella and the Temple of Sap", "Rollercoaster: The Musical!")
- Second time Phineas and Vanessa interact. ("Phineas and Ferb: Summer Belongs to You!")
- Second time that Ferb made a dramatic speech, first was "The Lizard Whisperer".
- Fourth time Phineas and Ferb interact with Doofenshmirtz. Although this may be unofficial, since it was in a story read by Carl. ("Wizard of Odd", Phineas and Ferb the Movie: Across the 2nd Dimension, "Doof Dynasty").
- The big fat ox appears again ("Phineas and Ferb: Summer Belongs to You!")
- When Candace is passing by Poofenplotz's bridge, you can see a skull that looks exactly like the one found in Phineas and Ferb the Movie: Across the 2nd Dimension.
- First time Ferb and Vanessa interact in Season 3.
- This is the third time Ferb has extended lines ("The Lizard Whisperer", "It's a Mud, Mud, Mud, Mud World").
Phineas and Ferb and the Temple of Juatchadoon
- This episode takes place in 1914.
- After about a decade of work, the present-day Panama Canal was completed in 1914, the same year as the events of this episode.
- Juatchadoon is a spoof of Isabella's line "What'cha doin'?".
- Unlike Phineas, Ohio states that he works for profit.
- None of the characters portrayed by the Flynn-Fletchers in this episode seem to be related.
- Ohio Flynn, Rhode Island Fletcher, and New Hampshire Garcia-Shapiro's names are dedicated to the states of Ohio, Rhode Island, and New Hampshire in the United States.
- This is the second episode with "X and the Temple of Y" in the title ("Isabella and the Temple of Sap").
- A monkey that swings by as the scene changes to Panama makes the same sound as the endangered tangerine orangutan ("Bad Hair Day").
- This is the third time "Thank you very much" is said ("Hide and Seek", "The Beak").
- This is the second time "O.M.G." is said ("Split Personality").
- This is the second episode to use Perry's theme in a non-instrumental form ("One Good Scare Ought to Do It!").
- This is the third time Ohio is mentioned ("Invasion of the Ferb Snatchers", "Phineas and Ferb: Summer Belongs to You!").
- This is the fourth episode not to take place in the present day ("Tri-Stone Area", "Doof Dynasty", "Excaliferb").
- This is the tenth episode with "Phineas and Ferb" in the title ("Phineas and Ferb Get Busted!", "Phineas and Ferb's Quantum Boogaloo", "Phineas and Ferb Musical Cliptastic Countdown", "Phineas and Ferb Christmas Vacation!", "Phineas and Ferb Hawaiian Vacation", "Phineas and Ferb: Summer Belongs to You!", "Phineas and Ferb Interrupted", Phineas and Ferb the Movie: Across the 2nd Dimension, "A Phineas and Ferb Family Christmas").
- The Chupacabra is mentioned in this episode before its debut in "La Candace-Cabra".
- Most of the characters in this episode act like adults, regardless of age. This is a nod to the serious theme of the Indiana Jones franchise, which is the main basis of the adventure.
Monster from the Id
- Linda and Monogram do not appear in this episode.
- Adyson is the only Fireside Girl who does not appear in this episode.
- This episode reveals several things:
- Perry wears contact lenses.
- Whatever happened with Candace ending up in a Picasso-like environment caused her to fear the number seven ("Phineas' Birthday Clip-O-Rama!").
- Jeremy carries a drain unclogger with him.
- Jeremy knows Irving.
- Candace sees Phineas and Ferb as some sort of prey.
- This is one of the few episodes where Candace doesn't try to bust her brothers.
- This is the first time Doofenshmirtz is seen in his turtle neck and pants without his lab coat.
- "Out, Peace!" is said again ("Unfair Science Fair Redux (Another Story)", "Attack of the 50 Foot Sister", "Invasion of the Ferb Snatchers", "The Beak", "She's the Mayor", "Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather").
- Ducky Momo appears again, this time in the form of a club.
- This is the fourth time Major Monogram is neither seen nor mentioned ("Isabella and the Temple of Sap", "Canderemy", "Phineas and Ferb Interrupted").
- While inside Candace's mind and being attacked by the id, Buford says "You all signed the releases, right?", talking to the group he is guiding. This is similar to what Phineas says in "Rollercoaster".
- This is the ninth time Doofenshmirtz is seen in his underwear ("Lights, Candace, Action!", "Tip of the Day", "Bubble Boys", "Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Run, Candace, Run", "My Fair Goalie", "Bullseye!").
- This is the third time Doofenshmirtz's inator causes garments to spontaneously appear or disappear on people ("Boyfriend From 27,000 B.C.", "Gaming the System").
- The song "Do Nothing Day" is heard again ("The Best Lazy Day Ever", "Chez Platypus", "The Bully Code", "Make Play").
- Perry walks away from Doofenshmirtz while he is explaining his backstory again ("Voyage to the Bottom of Buford").
- This is the third time Perry is seen in underwear ("Unfair Science Fair", "Perry Lays an Egg").
- This is the second time an episode starts with Candace having her face on the window ("Phineas and Ferb-Busters!").
- This is the third time more than one Candace is seen ("Split Personality", "Last Train to Bustville").
- This is the second time Perry is early for Doofenshmirtz's scheme ("I Scream, You Scream").
- This is the second time Doofenshmirtz's plan involves stripping people to their underwear ("Boyfriend From 27,000 B.C.").
- The Talking Zebra and the Giant Floating Baby Head appear again.
- Norm and Irving are the eighth and ninth characters to be shown in underwear. The others being Dr. Doofenshmirtz, Phineas, Ferb, Perry, Buford, Baljeet, and Jeremy.
Gi-Ants
- This episode and "When Worlds Collide" take place on the same day.
- It is revealed that Buford's grandmother's house smells like ant pheromones.
- Candace becomes queen of something again ("Lawn Gnome Beach Party of Terror", "Unfair Science Fair Redux (Another Story)").
- Major Monogram's mention of acting in the theater of "The Academy" is similar to that of him wanting to be a singer ("Split Personality").
- Buford shows his annoyance of Phineas being funnier than him again ("De Plane! De Plane!").
- Doofenshmirtz gets his head stuck in a turkey while fighting Perry, similar to what happened to Perry the Platyborg, and remarks "It can't be the first time someone got their head stuck in a turkey". (Phineas and Ferb the Movie: Across the 2nd Dimension)
- This is the fourth time Perry fires Doofenshmirtz's inator at itself. ("Fireside Girl Jamboree", "Just Passing Through", "My Fair Goalie").
- This is the third time Phineas and Ferb's invention turns into food ("Crack That Whip", "Fireside Girl Jamboree").
- Phineas says "Us-es" again ("Phineas and Ferb-Busters!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time ant farms are mentioned ("Get That Bigfoot Outa My Face!").
- Ferb says that the ants would return to their planet if they ever have a picnic or do anything picnic themed. They would do this in the episode "It's No Picnic". However, the ants are not seen in the episode.
The Remains of the Platypus
- The title card for this episode is at first shown mirrored before flipping horizontally to reveal the standard format of the title, most likely to represent the back to front format of the episode.
- It is revealed that Major Monogram is allergic to cheese, in spite of that he loves eating it. He is the third character shown to be allergic to dairy products. The first two are Candace and Doofenshmirtz ("Candace Loses Her Head", "I Scream, You Scream").
- It is revealed that Carl goes to squirrel conventions.
- Dr. Doofenshmirtz is one of the few characters to be shown in underwear.
- This is the first time Major Monogram takes part in one of the boys' activities.
- Major Monogram crosses paths with Phineas and Ferb again ("Undercover Carl", Phineas and Ferb the Movie: Across the 2nd Dimension).
- If all reverse time skips are added up, the total amount of time is 8 hours and 3 minutes.
- This is the first time Carl is captured by Doofenshmirtz.
- This is the second time an episode doesn't start from the beginning (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Doofenshmirtz attempts to evaporate something ("De Plane! De Plane!").
- This is the tenth time Doofenshmirtz is seen in his underwear ("Lights, Candace, Action!", "Tip of the Day", "Bubble Boys", "Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Run, Candace, Run", "My Fair Goalie", "Bullseye!", "Monster from the Id").
- This is the third episode that opens at Doofenshmirtz Evil Incorporated ("Hail Doofania!", "A Real Boy").
- This is the second episode that uses the Evil Jingle as opening music ("Hail Doofania!").
- Major Monogram wears normal clothes again ("Undercover Carl").
- Perry wears clothes again ("Vanessassary Roughness", "Undercover Carl", "She's the Mayor", "Skiddley Whiffers", "Monster from the Id").
- This is the ninth time Candace isn't seen turning to see that the big idea is gone. ("Flop Starz", "I Scream, You Scream", "The Flying Fishmonger", "One Good Scare Ought to Do It!", "Backyard Aquarium", "Thaddeus and Thor", "The Doof Side of the Moon", "Invasion of the Ferb Snatchers")
- Buford tries to be clever with word play again ("De Plane! De Plane!", "Gi-Ants").
- This is the third time Phineas and Ferb build something early in the morning ("Don't Even Blink", "Phineas and Ferb: Summer Belongs to You!").
- This is the fourth time Phineas wonders where their creation went ("Don't Even Blink", "No More Bunny Business", "Ask a Foolish Question").
- This is the second time Dr. Doofenshmirtz tries to make Perry his minion ("Day of the Living Gelatin").
- This is the second time someone says "And.....scene", breaking the fourth wall ("The Chronicles of Meap").
- Another fourth wall break occurs when Doofenshmirtz says that he's finally an evil genius, and turns to the camera and says "For realsies this time".
- This is the third time Carl goes on a mission ("Swiss Family Phineas", "Undercover Carl").
- The instrumental of "My Wettest Friend" can be heard during the montage showing Perry acting as Doofenshmirtz's butler.
- This is the sixth time Doofenshmirtz can recognize Perry without his hat ("I Scream, You Scream", "Get That Bigfoot Outa My Face!", "It's About Time!", "Oil on Candace", "Skiddley Whiffers").
- This is the third time Perry is dressed as someone else ("Does This Duckbill Make Me Look Fat?", "Vanessassary Roughness")
- This is the third time Adyson is the only Fireside Girl to have a speaking line other than Isabella ("The Lemonade Stand", "The Great Indoors").
- Candace doesn't interact with Phineas and Ferb when they build Cheesetopia, but she does when they make the celebration seeking rocket for Little Saul and the Breakingham Palace crew.
- Candace's last line in the episode echoes a line she says in "Journey to the Center of Candace".
- This is the fifth time Candace sees Perry as a secret agent ("The Ballad of Badbeard", "Leave the Busting to Us!", "Bowl-R-Ama Drama", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the third time Candace sees Monogram ("The Ballad of Badbeard", Phineas and Ferb the Movie: Across the 2nd Dimension).
Mom's in the House
- Despite the title, Linda does not actually go in the house.
- Phineas breaks the fourth wall by mentioning the "Perry Tronic" song. Candace also does this by stating she has to "Bu-bu-but".
- Phineas and Ferb build a machine that looks like Perry again ("Perry Lays an Egg", Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz makes duplicates of himself again ("Run Away Runway").
- This is the second time Doofenshmirtz makes an inator that "duplicates" anything ("Hip Hip Parade").
- This is the second time Doofenshmirtz says "nincompoop" ("Moon Farm").
- This is the second time Perry bites Doofenshmirtz's finger (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz says "Dummkopf" again ("Finding Mary McGuffin", "The Doof Side of the Moon").
- The "Mambo No. 5" soundalike is heard again ("The Chronicles of Meap", "Canderemy").
- One of the forms of the Perrytronic 3000 looks like the Giant Floating Baby Head.
- This is the second time Doofenshmirtz mentions volition ("Brain Drain").
- This is the fourteenth episode to have live action shots ("Rollercoaster", "Candace Loses Her Head", "Lights, Candace, Action!", "Out to Launch", "The Chronicles of Meap", "We Call it Maze", "Rollercoaster: The Musical!", "Canderemy", "Moon Farm", "Misperceived Monotreme", "Mommy Can You Hear Me?", "Escape from Phineas Tower", "Tri-Stone Area").
- This is the fourth time Stacy is annoyed with Candace for trying to bust her brothers ("The Lemonade Stand", "Canderemy", "Phineas and Ferb-Busters!").
- The task of making sure the big idea doesn't disappear is a plot point again ("Don't Even Blink").
- This is the third time Linda says "Oh, my goodness!" ("Does This Duckbill Make Me Look Fat?", "Picture This").
- In Phineas and Ferb's room, the pecking chicken can be seen on a shelf ("Brain Drain").
Perry The Actorpus
- Doofenshmirtz has his own O.W.C.A. by-law handbook.
- Agent S appears again, and has his name revealed to be Sergei the Snail. It is also the second time he is assigned to Doofenshmirtz ("Oh, There You Are, Perry").
- This is the first episode to show the Flynn-Fletcher house to have an attic.
- Phineas and Ferb are only seen in the first half of the episode. After the shot of Phineas tossing a ball to Perry, he and Ferb aren't seen again for the rest of the episode. This is the first episode to do this, the second is "The Mom Attractor".
- Mandy appears again ("Thaddeus and Thor").
- The Danville Community Center appears again ("The Secret of Success").
- Doofenshmirtz and Monogram interact again ("Phineas and Ferb Musical Cliptastic Countdown", "Phineas and Ferb: Summer Belongs to You!", "Candace Gets Busted").
- José Doofenshmirtz is mentioned again ("Meatloaf Surprise").
- This is the third time Doofenshmirtz is seen wearing glasses ("Vanessassary Roughness", "Phineas' Birthday Clip-O-Rama!").
- As Doofenshmirtz reads the O.W.C.A. by-law handbook, the instrumental of "Hail Doofania!" is played.
- This is the third time Perry's name is in the title ("Oh, There You Are, Perry", "Perry Lays an Egg").
- This is the second time Perry is marketed ("Toy to the World").
- This is the second time Mrs. Thompson is mentioned (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz is seen with facial hair again, even though he is unable to grow it ("Phineas and Ferb Hawaiian Vacation", "My Fair Goalie").
- This is the third time Candace can't hold her obsession with the boys ("Hip Hip Parade", "Robot Rodeo").
- This is the third time Candace's jaw drops ("The Fast and the Phineas", "Does This Duckbill Make Me Look Fat?").
- This is the third time there is a song about Perry ("Oh, There You Are, Perry", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the third time Candace stays frozen in place while Linda walks in the house after a failed bust attempt ("I Scream, You Scream", "The Doof Side of the Moon").
- This is the second time Candace tries something to get her to stop busting, unsuccessfully ("Last Train to Bustville").
- Mandy tells Candace to put her hand down in a similar way to Phineas telling Ferb to do so (Phineas and Ferb the Movie: Across the 2nd Dimension).
Let's Bounce
- This is the first time the entire Johnson family visits the Flynn-Fletcher house.
- This is the only time Suzy gets caught for her bad behavior.
- This is the second time an anti-gravity device is made ("Undercover Carl").
- This is the third time Candace accidentally hits herself with Phineas and Ferb's invention ("Split Personality", "Hide and Seek").
- After getting hit by his Tell-the-Truth-inator, Doofenshmirtz says "Secretly I'm very lonely", like Bobbi Fabulous and Norm do. ("Dude, We're Getting the Band Back Together", "Greece Lightning")
- Blay'n and Santa Claus appear during "Lies" ("Phineas and Ferb Christmas Vacation!").
- This is the second time "Maximus" is part of a name of one of Phineas and Ferb's inventions ("Gi-Ants").
- This is the second time Suzy says "bubbles" ("Comet Kermillian").
- A poster of the movie "Leap" appears during "Lies" ("The Curse of Candace").
- In the baseball match, a sign of "Totally Tools" can be seen ("Perry The Actorpus").
- The sound of the anti-gravity device is the same sound from "Picture This".
- This is the second time Linda wants Candace to tell the truth ("Lawn Gnome Beach Party of Terror").
- Abraham Lincoln appears again, and it's the second time it is a robot ("Candace Loses Her Head", "Mom's Birthday", "Wizard of Odd")
Bully Bromance Breakup
- This is the first time one of Phineas and Ferb's friends is a part of Perry's subplot instead of Phineas and Ferb's plot.
- This is the first episode to not feature Candace at all. She did not physically appear in "Phineas and Ferb Musical Cliptastic Countdown", but is seen in some of the musical numbers.
- It is revealed that Phineas finds difficulty in not being able to build when he isn't given permission, and will suffer withdrawal symptoms.
- This is the first time Isabella, Buford, and Baljeet appear without Candace.
- This is the first time Baljeet gives Buford a wedgie.
- This is the second time Buford interacts with Doofenshmirtz ("Chez Platypus").
- This is the second time Perry can't stop Doofenshmirtz because he is with a Flynn-Fletcher friend ("The Lizard Whisperer").
- Baljeet stops being Buford's nerd again ("Hip Hip Parade").
- This is the fifth time one of the major characters goes to Doofenshmirtz Evil Incorporated ("The Lizard Whisperer", "Fireside Girl Jamboree", Phineas and Ferb the Movie: Across the 2nd Dimension, "The Remains of the Platypus").
- This is the third time Baljeet and Buford have their own subplot ("Swiss Family Phineas", "Hip Hip Parade").
- This episode begins with an instrumental version of the "Summer Belongs to You" tune from the beginning of the special.
- An instrumental version of "He's a Bully" can be heard when Buford goes on a rampage along with Doofenshmirtz ("Raging Bully").
- Doofenshmirtz wears the same shorts from "Put That Putter Away".
- This is the second time Isabella pauses before saying the word "twice" ("We Call it Maze").
- This is the second time Phineas has or almost has a mental breakdown ("Phineas and Ferb: Summer Belongs to You!").
- This is the fifth time two or more people wear the same outfit ("Run Away Runway", "De Plane! De Plane!", "Not Phineas and Ferb", "Phineas and Ferb: Summer Belongs to You!").
- This is the second time Ferb puts his hand on Phineas' shoulder (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Danville Mountain appears again ("Phineas and Ferb-Busters!", "Ask a Foolish Question").
- Tuff Gum is mentioned again ("Suddenly Suzy", "Phineas and Ferb Interrupted").
Quietest Day Ever
- This is the first time Baljeet is seen wearing a ninja suit.
- The De-Handsome-inator in reverse produces a similar effect to Cutonium, in that it makes Doofenshmirtz so handsome no one can resist his handsomeness.
- It is revealed that Doofenshmirtz is 47 years old.
- The title of this episode is similar to "The Best Lazy Day Ever".
- Also, both episodes involve Doofenshmirtz being referred to as ugly and creates an inator that turns something ugly.
- Isabella wears a ninja suit again ("Dude, We're Getting the Band Back Together").
- Candace says "Bust them" again ("Phineas and Ferb's Quantum Boogaloo", "What Do It Do?").
- This is the fourth time Linda stays at home while Phineas and Ferb build and play with their invention ("Phineas and Ferb Interrupted", "Mommy Can You Hear Me?", "Mom's in the House").
- The Bistro is seen again ("Phineas and Ferb: Summer Belongs to You!").
- During the song "I'm Handsome", during the line "My hair is wavy...", a woman in the background can be seen fainting over her windowsill. During the line "Take a picture...", she is seen fainting again in the same way, but in a different direction. This is most likely due to the fact that Doofenshmirtz was animated separately, and the background was flipped to make it look different.
The Doonkelberry Imperative
- It is revealed that Drusselstein is powered by a big central shaft.
- It is revealed that Isabella's first patch is the "Medieval Siege Engine" patch.
- Doofenshmirtz's driving license expires on December 30, 2012.
- This is one of few episodes where "Oh, there you are, Perry" is not said in either segment.
- This is the first time Phineas, Ferb, and Isabella go to Drusselstein.
- This is the first time the address of the Flynn-Fletcher residence, 2308 Maple Drive, is said.
- This is the first time Candace fires an inator that destroys evidence of the boys' invention, although this is not done intentionally.
- This is the first time Vanessa does a parody of The Slacks's Evil Jingle.
- The doonkelberries are mentioned again ("Lawn Gnome Beach Party of Terror", "Raging Bully").
- This is the fifth time Candace and Vanessa interact ("S'Winter", "Hail Doofania!", "Finding Mary McGuffin", "Phineas and Ferb: Summer Belongs to You!").
- This is the fifth time Candace goes to Doofenshmirtz Evil Incorporated ("Fireside Girl Jamboree", "Ain't No Kiddie Ride", "Run, Candace, Run", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the eighteenth episode in which Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run Candace Run", "Candace Disconnected", "Skiddley Whiffers", "Bullseye!").
- This is the first episode in Season 3 and eighth episode overall in which Baljeet appears without Buford ("Phineas and Ferb Get Busted!", "Unfair Science Fair", "Unfair Science Fair Redux (Another Story)", "Attack of the 50 Foot Sister", "Day of the Living Gelatin", "Phineas and Ferb's Quantum Boogaloo", "Undercover Carl").
- This is the second time Doofenshmirtz drives a lemon car ("What Do It Do?").
- Candace wants to bust her brothers despite the fact they're not home yet ("The Fast and the Phineas", "Put That Putter Away", "Unfair Science Fair Redux (Another Story)", "Attack of the 50 Foot Sister", "The Remains of the Platypus", "Perry The Actorpus").
- This is the second time Doofenshmirtz says "As long as you are here" ("Candace Disconnected").
- This is the third time someone talks to the "mysterious force" that makes Phineas and Ferb's inventions disappear ("Phineas and Ferb Get Busted!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the only episode in which Candace doesn't interact with Linda in person.
- Candace doesn't interact with Phineas and Ferb nor does she see them in this episode.
Meapless in Seattle
- It is revealed that Phineas thinks Isabella is very cute.
- It is revealed that Mitch is a member of Meap's species wearing a very large battle suit, which can function on its own, but not very well.
- The fourth wall is broken several times in this episode:
- Perry looks at the camera when Monogram tells Carl to crack his back.
- Doofenshmirtz states that he and Meap have been falling all throughout the commercial break.
- In the end, Phineas looks at the audience and says that he won't waste time restating the "valuable lesson" learned during the episode.
- During the end credits, Doofenshmirtz interrupts the fake trailer and says "Hey, wasn't that Suzy stuff supposed to be in this one?".
- This is the nineteenth time Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run, Candace, Run", "Candace Disconnected", "Skiddley Whiffers", "Bullseye!", "The Doonkelberry Imperative").
- This is the eighth time Phineas and Ferb go to space ("Rollercoaster", "Out to Launch", "The Chronicles of Meap", "The Secret of Success", "The Doof Side of the Moon", "Rollercoaster: The Musical!", "Moon Farm").
- Carl does Major Monogram's arms again ("The Chronicles of Meap").
- Major Monogram suffers from back problems again ("The Flying Fishmonger").
- This is the third time Ferb saves Candace's life ("Out to Launch", "Ain't No Kiddie Ride").
- This is the ninth time Baljeet appears without Buford ("Phineas and Ferb Get Busted!", "Unfair Science Fair", "Unfair Science Fair Redux (Another Story)", "Attack of the 50 Foot Sister", "Day of the Living Gelatin", "Phineas and Ferb's Quantum Boogaloo", "Undercover Carl", "The Doonkelberry Imperative").
- When the montage of Dr. Doofenshmirtz and Balloony is shown, an instrumental of "My Wettest Friend" can be heard ("The Lake Nose Monster").
- This is the fourth time Phineas' eyes grow big. ("It's About Time!", "Phineas and Ferb: Summer Belongs to You!", Phineas and Ferb the Movie: Across the 2nd Dimension)
- Ballooney's robo-suit is seen during "Carpe Diem" ("Rollercoaster: The Musical!").
- This is the fourth episode to be related to another ("Unfair Science Fair Redux (Another Story)" to "Unfair Science Fair", "Isabella and the Temple of Sap" to "Bubble Boys", "Rollercoaster: The Musical!" to "Rollercoaster").
- Meap appears again ("The Chronicles of Meap", "Phineas and Ferb Christmas Vacation!", "Rollercoaster: The Musical!").
- Mitch appears again ("The Chronicles of Meap", "Rollercoaster: The Musical!").
- Perry works with Peter again ("It's About Time!", "Robot Rodeo", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the ninth time Isabella's ears are seen ("Got Game?", "That Sinking Feeling", "Robot Rodeo", "The Secret of Success", "My Fair Goalie", "Rollercoaster: The Musical!", "Doof Dynasty", "Phineas and Ferb and the Temple of Juatchadoon").
- This is the third time Candace gets in trouble with her mother ("Candace Gets Busted", "The Secret of Success").
- When averting their gazes from Mitch's cuter form, Ferb covers his eyes in the same way that he does when Candace is mistaken for Medusa ("Greece Lightning").
- This is the second time Phineas and Ferb interact with Doofenshmirtz (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Ferb's log book is seen again ("Phineas and Ferb: Summer Belongs to You!").
- The southern mustache translator is labeled as being "made in Georgia". Jeff Foxworthy, who voices Meap when he speaks with this mustache, hails from Atlanta.
- This episode, along with "The Chronicles of Meap", was named #8 on WatchMojo.com's Top 10 Phineas and Ferb Episodes.[4]
Differences from the fake trailer
- In the trailer, when Balloony enters, Doofenshmirtz says "Balloony!" and Mitch says "Colin!". In the episode, Mitch is not with Doofenshmirtz when he and Balloony reunite.
- A new scene shows Meap and Suzy fighting each other in the Bango-Ru convention.
- The scene with Candace saying "What? Jeremy is going to be there?" is revamped.
- Mitch doesn't say "Aren't you a little young to save the universe?".
- In the trailer, Monogram says "I want your hat on my desk", Carl does his arm pointing, and Perry throws his chair to the screen, which is implied to be immediately afterwards. In the episode, both scenes are separated.
- When Mitch laughs at the beginning of the fake trailer, the background is different.
Delivery of Destiny
- This is the first time that an episode focuses on a special guest character instead of the main characters. It is also the third time an episode focuses on someone other than Phineas and Ferb for the majority of the time ("Isabella and the Temple of Sap", "Not Phineas and Ferb").
- It is revealed that Carl has a high and squeaky voice when he's hiding something.
- It is revealed that Roger Doofenshmirtz has a cat.
- This is the 11 minute episode with the most songs, with a total of ten.
- Isabella and Baljeet appear in this episode, but do not speak.
- This is the second time Isabella appears, but doesn't speak ("Moon Farm").
- This is the tenth time Baljeet appears without Buford ("Phineas and Ferb Get Busted!", "Unfair Science Fair", "Unfair Science Fair Redux (Another Story)", "Attack of the 50 Foot Sister", "Day of the Living Gelatin", "Phineas and Ferb's Quantum Boogaloo", "Undercover Carl", "The Doonkelberry Imperative", "Meapless in Seattle").
- WJOP is seen again ("Phineas and Ferb Christmas Vacation!").
- This is the second time someone runs up the stairs of Doofenshmirtz Evil Incorporated in order to deliver something ("Fireside Girl Jamboree").
- This is the third time someone is forced to use the stairs of a building when the elevator is out of order ("Comet Kermillian", "Fireside Girl Jamboree").
- When Love Händel first appears, they sing a riff from "You Snuck Your Way Right Into My Heart" ("Dude, We're Getting the Band Back Together").
- "Googly moogly" is said again ("Ready for the Bettys", "Phineas and Ferb Musical Cliptastic Countdown", "Doof Dynasty").
- This is the second time someone describes the appearance of Doofenshmirtz Evil Incorporated (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Candace doesn't see the Big Idea onscreen ("Undercover Carl").
- This is the third time someone says that O.W.C.A. is an uncool acronym ("Phineas and Ferb: Summer Belongs to You!", "Phineas and Ferb Interrupted").
- The hole in the door has been used twice before ("Chez Platypus", "Hip Hip Parade").
Buford Confidential
- This episode reveals that there are Fireside Girls in other countries, besides the United States.
- It is revealed that Buford once gone to Paris a year ago, fell in love with a girl for the first time, and learned how to speak French for her.
- This episode proves Buford's line "Paris does it everytime", which hints that he had been gone to Paris ("Phineas and Ferb: Summer Belongs to You!")
- Isabella can speak some French, but only enough to greet the French Fireside Girls.
- This is one of the extremely rare times where Perry is in his four-legged pet form and wearing his fedora at the same time.
- Major Monogram is afraid of moths.
- This is the second episode in which a Fireside Girl, other than Isabella, is seen in standard clothing.
- Animal costumes Buford wears:
- Bear
- Giraffe
- Reindeer
- Lemming
- Rattlesnake
- Vulture
- Shark
- Frog
- Unicorn (legendary)
- Six-legged octopus, known as "hexapus"
- Perry the Platypus
- Toucan
- Whale
- Second episode with Buford in the episode name. ("Voyage to the Bottom of Buford")
- The bear costume is used again. ("Skiddley Whiffers")
- The instrumental of City of Love is heard. ("Phineas and Ferb: Summer Belongs to You!")
- Second time Buford wears a shark costume. ("The Belly of the Beast")
- Clyde Flynn and Betty Jo Flynn appear for the second time in Season 3. ("Last Train to Bustville")
- Candace does a cameo for a fourth episode. ("Isabella and the Temple of Sap", "Brain Drain", "Delivery of Destiny")
- Second time someone slaps Buford in the face. ("Phineas and Ferb Interrupted").
- Sixth time Buford is shown crying. ("Voyage to the Bottom of Buford", "The Lemonade Stand", "Phineas' Birthday Clip-O-Rama!", "Let's Bounce", "Bully Bromance Breakup")
- Santa Claus appears again. ("I, Brobot", "Phineas and Ferb Christmas Vacation!", "Wizard of Odd", "Rollercoaster: The Musical!, "Let's Bounce")
- Second time when Phineas and Ferb dive with suba masks while building the spinker. This is also the first time when Bajeet dives with suba masks while building the spinkler. ("Phineas and Ferb Hawaiian Vacation")
- The yoga instructor appears again. ("Phineas and Ferb Hawaiian Vacation")
- The sarcastic/rhetorical question about what bears do in the woods is referenced again. ("Wizard of Odd")
- The woman who sings City Of Love while walking her dog is in the background while Buford and Brigitte are having dinner in Buford's flashback. ("Phineas and Ferb: Summer Belongs to You!")
- Phineas and Ferb create mechanically a water slide almost exactly the same as the one tiny water sprite Isabel and her charges create with fairy magic ("Excaliferb").
- Eighth time Candace doesn't see the Big Idea. ("Hail Doofania!", "Atlantis", "Brain Drain", "Bullseye!", "Escape from Phineas Tower", "Bully Bromance Breakup", "Delivery of Destiny")
- Twenty-first time Candace didn't interact with Phineas and Ferb ("I, Brobot", "Hail Doofania!", "De Plane! De Plane!", "Vanessassary Roughness", "Bubble Boys", "Isabella and the Temple of Sap", "Nerdy Dancin'", "The Belly of the Beast", "Magic Carpet Ride", "Meatloaf Surprise", "Tour de Ferb", "Bullseye!", "Escape from Phineas Tower", "Lotsa Latkes", "Doof Dynasty", "Excaliferb", "Perry The Actorpus", "Bully Bromance Breakup", "The Doonkelberry Imperative", "Delivery of Destiny").
The Mom Attractor
- The music that plays during the episode's title card is the same one that plays in "Rollercoaster", "Ain't No Kiddie Ride", "Wizard of Odd", "Moon Farm", and "Meatloaf Surprise".
- It is revealed that Bridgette Oshinomi is a mother.
- Phineas and Ferb are absent in the rest of the episode after Candace runs after Linda. This also happens in "Run, Candace, Run" and "Perry The Actorpus".
- This is the fourth episode with the word "Mom" in the title ("Mom's Birthday", "Mommy Can You Hear Me?", "Mom's in the House").
- This is the fourth time Candace tries to do a project with Phineas and Ferb to get them busted ("The Best Lazy Day Ever", "Don't Even Blink", "Meapless in Seattle").
- Candace wears the same swimsuit from "Lawn Gnome Beach Party of Terror" and "Flop Starz".
- This is the second time someone cries "My watermelon!" (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Candace is upset because the big idea disappeared without turning around ("Doof Dynasty").
- This is the second time someone yells "Four more years!" to Roger ("Escape from Phineas Tower").
- This is the third time someone other than Perry breaks the door ("Ferb Latin", "Perry The Actorpus").
- This is the third time one of Phineas and Ferb's inventions becomes self aware ("Phineas and Ferb: Summer Belongs to You!", "Escape from Phineas Tower").
- The Dan Povenmire and Jeff "Swampy" Marsh look alikes can be seen again ("The Beak").
- This is the fourth time Perry enters his lair without anyone saying "Where's Perry?" ("Run Away Runway", "Not Phineas and Ferb", "Split Personality").
- This is the second time Perry wears a fruit hat ("Perry The Actorpus").
- Ben Baxter appears again.
- This is the third time someone cries "It's working! It's functioning properly!" ("Are You My Mummy?", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the fourth time Doofenshmirtz doesn't recognize Perry without his fedora ("Lawn Gnome Beach Party of Terror", "Attack of the 50 Foot Sister", "The Lemonade Stand").
- This episode includes the most mentions of "Mom" in the series, with a total of seventy-two, counting the song, its part in the big idea's name, and compounds with the word. The second place is "Phineas' Birthday Clip-O-Rama!" with sixty, the third is "Mom's Birthday" with thirty-three, the fourth is "Split Personality" with twenty and the fifth is "Mom's in the House" with eighteen.
- When Candace is showing Linda the Mom Attractor near the end, they share a conversation identical to the one in "I, Brobot".
Cranius Maximus
- It is revealed by Buford that Phineas and Ferb have built over 150 inventions.
- Isabella breaks the fourth wall when she refers to Baljeet as "hardcore" by talking to the audience.
- This is the eighth time Doofenshmirtz succeeds on his scheme ("Hail Doofania!", "At the Car Wash", "Robot Rodeo", "Split Personality", "Candace Disconnected", "Magic Carpet Ride", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the seventh time Perry fails to defeat Doofenshmirtz ("One Good Scare Ought to Do It!", "Hail Doofania!", "That Sinking Feeling", "Finding Mary McGuffin", "Magic Carpet Ride", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Doofenshmirtz builds an inator to find a key ("Ask a Foolish Question").
- This is the fourth time one of Phineas and Ferb's inventions doesn't go as planned ("Day of the Living Gelatin", "Escape from Phineas Tower", "Lotsa Latkes").
- Candace wears the same swimsuit from "De Plane! De Plane!" and "Atlantis".
- This is the eleventh time Doofenshmirtz is seen in his underwear. ("Lights, Candace, Action!", "Tip of the Day", "Bubble Boys", "Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Run, Candace, Run", "My Fair Goalie", "Bullseye!", "Monster from the Id", "The Remains of the Platypus")
- Also, this is the fourth time Doofenshmirtz first appears in the episode in his underwear ("My Fair Goalie", "Monster from the Id", "The Remains of the Platypus").
- This is the second time someone's brain grows big, the first being Doofenshmirtz's and Perry's ("Phineas and Ferb Hawaiian Vacation").
- This is the second time a smarter version of Baljeet is seen (Phineas and Ferb The Movie: Across the 2nd Dimension).
- This is the third time Flynn-Fletcher Antiques appears ("Phineas and Ferb's Quantum Boogaloo", "Escape from Phineas Tower").
- This is the second time Buford says something about a wedgie machine ("What Do It Do?").
- This is the second time Baljeet and Buford build inventions without Phineas and Ferb ("Phineas and Ferb Interrupted", "What Do It Do?").
- This is the fourth time Danville is seen raining ("The Monster of Phineas-n-Ferbenstein", "Hide and Seek", "The Great Indoors").
- This is the second time Linda states she can't go anywhere unless something else happens first ("Thaddeus and Thor").
- This is the second time someone questions how long their summer vacation is ("The Curse of Candace").
- This is the second time something has "Maximus" in the name ("Gi-Ants").
- This is the second time Doofenshmirtz sings "Gitchee Gitchee Goo" ("I, Brobot").
Agent Doof
- This is the twentieth episode in which Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run, Candace, Run", "Candace Disconnected", "Skiddley Whiffers", "Bullseye!", "The Doonkelberry Imperative", "Meapless in Seattle").
- It is revealed that Dr. Diminutive's nemesis is Newton the Gnu.
- It is revealed that Dr. Diminutive builds "-erators".
- It is revealed that Major Monogram's car is a black sedan.
- This is the first time Isabella and the Fireside Girls are seen as babies.
- Holly is the only Fireside Girl who does not appear.
- Candace breaks the fourth wall at the end by mentioning "the next episode".
- Like Phineas, Dr. Doofenshmirtz also scratches his ear when lying, being the third character who does something while covering up a lie. The first is Phineas in "The Beak" and the second is Carl in "Delivery of Destiny".
- During the end of the episode, when all the agents are fixing the agency, there are two pig agents. One is wearing a fedora, and another is wearing a hardhat. This is likely due to the O.W.C.A. having more than one agent of the same species, like with the ostriches.
- This is the fourth time the O.W.C.A. headquarters are seen ("Traffic Cam Caper", Phineas and Ferb the Movie: Across the 2nd Dimension, "Delivery of Destiny").
- This is the second time Ferb cries (Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the fifth time Candace loses her cellphone ("Greece Lightning", "Candace Disconnected", "Meatloaf Surprise", "Meapless in Seattle").
- Agent M appears again ("Phineas and Ferb Musical Cliptastic Countdown").
- This is the fourth time Phineas is seen as a baby ("Phineas and Ferb Get Busted!", "Oh, There You Are, Perry", "Phineas and Ferb: Summer Belongs to You!").
- This is the third time someone goes to a baby shower, and second time it is Linda ("Attack of the 50 Foot Sister", "Tour de Ferb").
- This is the second time Doofenshmirtz turns to the good side ("Voyage to the Bottom of Buford").
- This is the fourth time Isabella only has one line ("Flop Starz", "It's a Mud, Mud, Mud, Mud World", "Tour de Ferb").
- Phineas and Ferb are hit with one of Doofenshmirtz's inators again ("Gaming the System", "Canderemy", "Phineas and Ferb Interrupted").
- This is the second time someone gets told washing something will teach them karate ("Doof Dynasty").
- This is the second time someone gets their foot stuck in a door ("Chez Platypus").
- Doofenshmirtz and Monogram interact again ("Phineas and Ferb Musical Cliptastic Countdown", "Phineas and Ferb: Summer Belongs to You!", "Candace Gets Busted", "Perry The Actorpus").
- This is the second time Linda is seen as a baby ("Mom's Birthday").
- Many agents of the O.W.C.A. appear again ("Cheer Up Candace", "Phineas and Ferb Christmas Vacation!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- Candace is eating "Health Squares" cereal at the start of the episode, the same kind of cereal Jeremy eats on his day to visit colleges (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz leaves his Babe-inator unplugged. This is the exact opposite of what he does to his Shrink-inator ("Does This Duckbill Make Me Look Fat?", "Let's Take a Quiz").
- This is the fourth episode to have the word "Doof" in the title ("Hail Doofania!", "The Doof Side of the Moon", "Doof Dynasty").
- It is never explained how Phineas, Ferb, Linda, Isabella and the Fireside Girls get turned back to their regular selves after this episode. A possible explanation is that when Perry goes home and sees what happened, he returns to the laboratory and reverses the Babe-inator, akin to his act in another adventure ("Phineas and Ferb Interrupted").
Minor Monogram
- This episode marks the first appearance of Monty Monogram.
- This episode reveals several things:
- Perry has already met Monty offscreen.
- Buford likes gourds.
- Vanessa wants a tattoo.
- Despite her disdain in being involved with her father's schemes, Vanessa admits that she finds her father's plot to raise the Tri-State Area from the face of the Earth and hold it for ransom to be cool.
- This is the first episode to have very few running gags.
- This is the second time two different seasons are combined ("S'Winter").
- This is one of the few episodes where Perry is seen smiling ("Tip of the Day", "Phineas and Ferb Christmas Vacation!", "I, Brobot", "Candace Disconnected", "Oil on Candace", "Phineas' Birthday Clip-O-Rama!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the third breakup in the series ("Hip Hip Parade", "Bully Bromance Breakup").
- Monty flies in on the wings Perry used in "Mom's in the House".
- This is the seventh time someone mentions summer ending ("Rollercoaster", "I, Brobot", "Ain't No Kiddie Ride", "Wizard of Odd", "Phineas and Ferb: Summer Belongs to You!", "Cranius Maximus").
What A Croc!
- It is revealed that Buford likes hot dogs.
- The phrase "Swampy Marsh" is said again ("Excaliferb").
- This is the fifth time Major Monogram doesn't appear in an episode ("Isabella and the Temple of Sap", "Canderemy", "Phineas and Ferb Interrupted", "Monster from the Id").
- Candace says "You are going down, down, down!" again ("Rollercoaster", "One Good Scare Ought to Do It!", "Out of Toon", "We Call it Maze", "Rollercoaster: The Musical!").
- The Farmer and Farmer's Wife appear again.
- This is the second time Candace closes the door at Irving ("Moon Farm").
- The picture near the bathroom with Phineas and Ferb holding Perry and young Candace is seen again ("Nerds of a Feather", "Mom's in the House", "Quietest Day Ever").
- Doofenshmirtz calls Roger his "goody two-shoes brother" again ("Tree to Get Ready").
- "The Academy" is mentioned again ("Get That Bigfoot Outa My Face!", "Gi-Ants").
- During the song, at the museum, a picture of Candace in a Picasso parody saying "Mom!" can be seen again ("Phineas' Birthday Clip-O-Rama!", "Monster from the Id").
Sleepwalk Surprise
- Candace says it was the two month nine day anniversary of when her relationship with Jeremy began. Considering their relationship likely begins in "Phineas and Ferb: Summer Belongs to You!", which takes place in the summer solstice, this episode takes place in late August.
- There are three fourth wall breaks in this episode:
- When Candace talks to her disembodied voice, which tells her what she's thinking.
- Doofenshmirtz utters that a "ripple dissolve [is] imminent" before his dream sequence.
- Doofenshmirtz's inner self disappears, and Doofenshmirtz looks at the audience before the screen fades to black.
- Candace doesn't try to bust her brothers in this episode, but she tries to stop her mom from seeing them.
- This is the second episode to have the word "surprise" in the title ("Meatloaf Surprise").
- This is the third time Doofenshmirtz wears a fedora ("Agent Doof", "Quietest Day Ever").
- The Giant Floating Baby Head appears again.
- This is the second time Phineas, Ferb, and the gang are seen with jetpacks ("Cranius Maximus").
- This is the fourth time Balloony appears ("The Chronicles of Meap", "Rollercoaster: The Musical!", "Meapless in Seattle").
- A Goozim is seen again ("Got Game?", "Rollercoaster: The Musical!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time someone asks for cake in their sleep ("My Fair Goalie").
- This is the second time Buford eats during Phineas and Ferb's big idea ("What A Croc!").
- This is the tenth time Phineas and Ferb go to space ("Rollercoaster", "Out to Launch", "The Chronicles of Meap", "The Secret of Success", "The Doof Side of the Moon", "Rollercoaster: The Musical!", "Moon Farm", "Meapless in Seattle").
- This is the second time Major Monogram is seen tired during Agent P's briefing ("Magic Carpet Ride").
- This is the fifth time Linda is home while Phineas, Ferb, and the gang participate in the big idea ("Phineas and Ferb Interrupted", "Mommy Can You Hear Me?", "Mom's in the House", "Quietest Day Ever").
- This is the third time Candace tries to prevent Linda from seeing the big idea ("Lawn Gnome Beach Party of Terror", "Thaddeus and Thor").
- This is the second time the inside of someone's mind is seen ("Monster from the Id").
- This is the third time Irving pops out of nowhere in Phineas and Ferb's invention ("Hide and Seek", Ferb Latin").
Sci-Fi Pie Fly
- This episode's title rhymes.
- This is the first episode where Candace resists busting Phineas and Ferb.
- Normally when it's nighttime, the lighting in Candace's room is darker when the lights are out, but in this episode the room is blue-tinted.
- This is the second time Candace could have busted Phineas and Ferb if she didn't change her pattern ("Phineas and Ferb-Busters!").
- This is the fourth time the Flynn-Fletcher Antiques appears ("Phineas and Ferb's Quantum Boogaloo", "Escape from Phineas Tower", "Cranius Maximus").
- This is the second time aliens are heavily involved in an episode ("Invasion of the Ferb Snatchers").
- Doofenshmirtz is the second character to say that something sucks, but meaning it literally, the first being Major Monogram in "Perry Lays An Egg".
- The man who goes to the doctor in "I Scream, You Scream" is seen in the crowd.
- This is the third time Lawrence's car appears, and the second time he uses it ("Dude, We're Getting the Band Back Together", "Bullseye!").
- This is the first time Phineas and Ferb's creation does not disappear by the end of the episode.
- This is the second time Doofenshmirtz orders food with a time-of-delivery guarantee and ends up paying for it ("The Lake Nose Monster").
- This is the second time Le Champ Pu shampoo & conditioner is seen ("Split Personality").
- Gordon Gutsofanemu appears again ("Phineas and Ferb Christmas Vacation!").
- Doofenshmirtz sings a whale song again ("Perry Lays an Egg").
- The Leaning Tower of Pisa is seen again and compared again with Pizza ("We Call It Maze").
Sipping with the Enemy
- This episode takes place sometime after "Minor Monogram".
- This is the second time Monty Monogram appears ("Minor Monogram").
- This is the fourth time Doofenshmirtz's invention hits Linda ("Phineas and Ferb Interrupted", "A Real Boy", "Agent Doof").
- This is the third time Isabella appears, but has no speaking or singing lines ("Moon Farm", "Delivery of Destiny").
- The "If I had a nickel for every time..." line is used again ("Wizard of Odd", "Phineas' Birthday Clip-O-Rama!", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the fifth time Candace loses her cell phone ("Greece Lightning", "Candace Disconnected", "Meatloaf Surprise", "Meapless in Seattle").
- Vanessa and Perry interact again.
- This is the fourth time Lawrence's car appears ("Dude, We're Getting the Band Back Together", "Bullseye!", "Sci-Fi Pie Fly").
- This is the second time Aliki Theofilopoulos' lookalike appears ("The Mom Attractor").
- This is the second time Phineas asks "Hey, Where's Ferb?" ("Phineas' Birthday Clip-O-Rama!").
- This is the second time Phineas does a grand finale. ("Jerk De Soleil")
Tri-State Treasure: Boot of Secrets
- It is revealed that Lawrence knows Greek.
- Major Monogram's phone is similar to an iPhone.
- Candace's red rubber boots appear again in the Danville Swap Meet ("Wizard of Odd").
- This is the second time a treasure is found ("The Ballad of Badbeard").
- Garbog, Conk, the T. rex and the Jeremy tree appear again ("It's About Time!", "Boyfriend From 27,000 B.C.", "Invasion of the Ferb Snatchers", "Wizard of Odd").
- This is the second time Doofenshmirtz's invention involves age ("Lights, Candace, Action!").
- This is the second time Phineas and Ferb are filmmakers ("Lights, Candace, Action!").
- This is the third time a story ended up being fake ("Phineas and Ferb Get Busted!", "Wizard of Odd").
- This is the second time Phineas and Ferb do special effects ("Nerds of a Feather").
- Ducky Momo is seen again ("Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Tour de Ferb", "My Fair Goalie", "Run, Candace, Run", "Mommy Can You Hear Me?", "Monster from the Id", "Let's Bounce").
- This is the eighth time Candace does not see the big idea ("Hail Doofania!", "Brain Drain", "Bullseye!", "Escape from Phineas Tower", "Bully Bromance Breakup", "Delivery of Destiny", "Buford Confidential").
- This is the second time the "Back Off" mud flappers are seen ("Suddenly Suzy").
- This is the third time Linda wears the same dress on her anniversary ("Dude, We're Getting the Band Back Together", "Candace's Big Day").
- When Phineas and Ferb first appear at the Young Filmmakers stage, they are seen wearing the same outfits they wear at Totally Tools ("Perry The Actorpus").
Doofapus
- This episode reveals several things:
- Phineas doesn't like zucchini.
- Buford has life-sized molds of everyone.
- Buford has poor penmanship.
- Perry owns a tricycle.
- This episode takes place on Stacy's birthday.
- An instrumental of "My Undead Mummy" plays at the episode's title card.
- This is the first time the instrumental of the extended version of "Perry the Platypus" is heard.
- This is the fifth time the word "Doof" is in the episode's title ("Hail Doofania!", "The Doof Side of the Moon", "Doof Dynasty", "Agent Doof").
- This is the second time the last syllable of an episode's title is "pus" ("Perry The Actorpus").
- This is the seventh time an episode's title has only one word ("Rollercoaster", "S'Winter", "Atlantis", "Canderemy", "Bullseye!", "Excaliferb").
- This is the second time someone other than Perry is a platypus ("Does This Duckbill Make Me Look Fat?").
- This is the third time Doofenshmirtz has a platypus-related scheme ("Greece Lightning", "Cheer Up Candace").
- This is the third time Doofenshmirtz turns into an animal ("Phineas and Ferb Hawaiian Vacation", "That's the Spirit").
- This is the third time Perry fights with another platypus ("Cheer Up Candace", Phineas and Ferb the Movie: Across the 2nd Dimension).
- This is the second time Doofenshmirtz is seen with a platypus tail ("Sleepwalk Surprise").
- Doofenshmirtz decides to fight "fire with fire" again, and mentions both "fires" meaning "platypus" again ("Cheer Up Candace").
- Stacy is the eighth character to have a birthday celebrated ("Candace Loses Her Head", "Raging Bully", "Mom's Birthday", "Dude, We're Getting the Band Back Together", "Run, Candace, Run", "Phineas' Birthday Clip-O-Rama!", "Agent Doof").
- This is the second time the character celebrating their birthday isn't shown ("Agent Doof").
- This is the third time Doofenshmirtz makes a duplicate of himself ("Run Away Runway", "Mom's in the House").
- This is the fourth time Candace accidentally hits herself with Phineas and Ferb's invention ("Hide and Seek", "Split Personality", "Let's Bounce").
- This is the third time Perry has tea, and the second time it's with Doofenshmirtz ("Day of the Living Gelatin", "Elementary My Dear Stacy").
- Doofenshmirtz hopes that the effects of the Platyp-inator wear off soon, in a similar manner to how Candace hopes that the effects of the Babe-inator wear off ("Agent Doof").
- This is the third time Doofenshmirtz makes a copy of something to defeat Perry ("Cheer Up Candace", "Mom's in the House").
- Ferb gets cut off again ("Vanessassary Roughness", "Get That Bigfoot Outa My Face!", "Ready for the Bettys", "Undercover Carl", "We Call it Maze", "Nerds of a Feather", "My Fair Goalie").
- Candace mentions something about wearing white on Labor Day again ("Undercover Carl").
Norm Unleashed
- This is the first time Perry's chatter is understandable.
- This is the first time Norm does the evil plan instead of Doofenshmirtz.
- Dr. Diminutive appears again.
- This is the first time Doofenshmirtz is seen in prison.
- This is the only episode to have Norm's name in the title.
- This is the third episode to have a song sung by Norm ("A Real Boy", "Traffic Cam Caper").
- This is the second time Norm shoots lasers ("Canderemy").
- This is the second time Norm offers muffins (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Buford breaks the fourth wall by mentioning that the nanobots forming "hello" is reminiscent from the title sequence.
- Ducky Momo merchandise is mentioned again.
- This is the third time Norm is the invention ("Greece Lightning", "Ferb Latin").
- The roller coaster engineer appears again.
- This is the twenty-first time Perry doesn't battle Doofenshmirtz ("Get That Bigfoot Outa My Face!", "Traffic Cam Caper", "Put That Putter Away", "The Monster of Phineas-n-Ferbenstein", "Oil on Candace", "Unfair Science Fair Redux (Another Story)", "Tip of the Day", "Thaddeus and Thor", "Oh, There You Are, Perry", "Undercover Carl", "I Was a Middle Aged Robot", "Nerds of a Feather", "Split Personality", "Run, Candace, Run", "Candace Disconnected", "Skiddley Whiffers", "Bullseye!", "The Doonkelberry Imperative", "Meapless in Seattle", "Agent Doof").
- The brobot machine can be seen in the garage, corresponding with it not disappearing at the end of the episode ("I, Brobot").
Where's Perry?
- First time Buford and Baljeet go with the Flynn-Fletcher family on a trip.
- The Flynn Fletchers are most likely in Kenya for their vacation, because they flew into Jomo Kenyatta International Airport. Phineas also mentions that they are at the Equator, and Kenya is one of the countries on the Equator.
- Kenya is considered to be part of the southern hemisphere, because even though it lies well within the equator, it still has the same climates and weather as other countries in the southern hemisphere at the same times of the year. So on technical terms, that means that because the series mainly takes place in America, during the summer, that this episode took place during the winter.
- It's been revealed that there are Fireside Girls in Africa.
- This is the fourth time the name "Perry" is in the title. ("Perry Lays an Egg", "Oh, There You Are, Perry", "Perry The Actorpus").
- This is the third time Perry is gone longer than he usually is. ("Oh, There You Are, Perry", Phineas and Ferb the Movie: Across the 2nd Dimension)
- Third time a ray is used to turn someone evil. ("Day of the Living Gelatin", "Bullseye!").
- Second time Isabella joins the Flynn-Fletcher family on a trip. ("Swiss Family Phineas")
- Candace mentions International Coverage. ("Phineas and Ferb: Summer Belongs to You!")
- Candace mentioned a Banana Phone in the same sentence. ("One Good Scare Ought to Do It!")
- The Adumu instructor thanks Isabella for teaching him and his tribe the "Izzy's Got the Frizzies". ("Robot Rodeo")
- Danville International Airport is seen again. ("Candace Gets Busted")
- Doofenshmirtz tells Norm just to "stretch his legs". ("Undercover Carl")
- Second time Phineas, Ferb, Candace, Isabella, Baljeet, and Buford visit Africa. ("Phineas and Ferb: Summer Belongs to You!")
- Second time that Doofenshmirtz's Inator is a decoy. ("It's About Time!")
- Second time someone is called a "slow-clapping fiend." ("Phineas and Ferb and the Temple of Juatchadoon")
- Second time a character is seen holding a human skull ("Skiddley Whiffers").
- Once again, Doofenshmirtz refers to his nemesis as "Perry" instead of "Perry the Platypus" when he says he is "sans Perry" ("Crack That Whip", "Hide and Seek").
- Agent S and Agent F can be seen on an arcade game cabinet during Carl's song.
- Candace does not bother to bust her brothers in this episode, nor the next part.
- Linda wears the same blue dress from "Does This Duckbill Make Me Look Fat?".
- This is the first special episode that Candace doesn't sing. However, she does have a song in the next part, but it was offscreen.
- Candace says "D, like in Dantible Varumbi," which are Dan Povenmire's full first and middle names.
Where's Perry? (Part Two)
- We learn that O.W.C.A. has agents in Africa. (Though this is only true because Perry recruited them in the episode.)
- Buford breaks the fourth wall when he comments on the length between the airings of part 1 and this episode.
- One of Ferb's favorite foods is Haggis, a traditional Scottish dish.
- During the song images from previous episodes can be seen.
- According to Carl's GPS, dendrobium uncharticum (and, thus, Perry and the Flynn-Fletcher family as well) can be found in the region that appears to be either northeastern Chad or northwestern Sudan.
- All of Carl's evil robots have angry expressions, with the exception of Isabella and Norm, who are smiling.
- Major Monogram wears his acrobat suit for the second time. ("Minor Monogram")
- Major Monogram says "googly moogly" again. ("Ready for the Bettys", "Phineas and Ferb Musical Cliptastic Countdown", "Doof Dynasty", "Minor Monogram")
- Ducky Momo is once again seen or mentioned for the tenth time. ("Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Tour de Ferb", "My Fair Goalie", "Run, Candace, Run", "Mommy Can You Hear Me?", "Monster from the Id", "Let's Bounce" "Tri-State Treasure: Boot of Secrets")
- Third time Doofenshmirtz works alongside Major Monogram. ("Phineas and Ferb: Summer Belongs to You!", "Agent Doof")
- At the beginning of the song, the call of the tangerine orangutan can be heard. ("Bad Hair Day")
- Second time Perry and Doofenshmirtz are in Africa. ("What Do It Do?")
- An image from "Run, Candace, Run" can be seen in Candace's room.
- Second time Doofenshmirtz can only make a shot ("Oil on Candace")
- A picture of Candace and Jeremy playing on Johnsons' family picnic can be seen on Candace's wall ("Run, Candace, Run")
- Can-tok's theme music from "Tri-Stone Area" can be heard when "Candar" scampers away from her robot doppelgänger.
- In "Where's Perry?", Carl reused the Flynn-Fletcher Robots from I Was a Middle Aged Robot, In this episode, he returns with not only those, but duplicates of: Dr. Doofenshmirtz, Isabella, Baljeet, Buford, Major Monogram, Vanessa, Irving, Norm, and Clyde. Clyde only made a short cameo, getting punched and blown up by Major Monogram.
- Baljeet saves Buford's life for the second time. ("The Bully Code")
- Ferb's Scottish background is mentioned. ("Invasion of the Ferb Snatchers")
- First special episode that Phineas and the gang don't sing. However, Phineas did sing in the first part.
Ferb TV
- This is the second time a version of Baljeet refers to himself as "Dr. Baljeet" (Phineas and Ferb the Movie: Across the 2nd Dimension).
- Doofenshmirtz breaks the fourth wall by attempting to get on screen during the credits.
- It is revealed that Isabella wears her pink bow under her Fireside beret.
- This is the fourth and final time Meap appears in Season 3.
- This is the only time Roger and Norm appear without Dr. Doofenshmirtz.
- This is one of the few episodes with the least running gags.
- This is the fifth episode with only Ferb's name in the title ("Invasion of the Ferb Snatchers", "Tour de Ferb", "Ferb Latin", "Excaliferb").
- Klimpaloon appears again ("Phineas and Ferb: Summer Belongs to You!", "Bullseye!").
- The theme song to Katt Karr is similar to the Doof 'N' Puss theme song.
- The Giant Floating Baby Head appears again.
- This is the eleventh time Ducky Momo appears ("Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather", "Tour de Ferb", "My Fair Goalie", "Run, Candace, Run", "Mommy Can You Hear Me?", "Monster from the Id", "Let's Bounce", "Tri-State Treasure: Boot of Secrets", "Where's Perry? (Part Two)").
- This is the second time someone questions the use of a lumpy table ("Canderemy").
- Two of the kids from the Skiddley Whiffers commercial appear again in the Meap's Carbonated Goulash commercial.
- Vance Ward, Bob Webber, and Sherman appear in the Dancing with the Bears commercial.
- "Holy Guacamole" is said again ("A Real Boy").
- The Horse in the Bookcase appears again ("What A Croc!").
- This is the fourth episode where neither Perry nor Pinky have a subplot ("Phineas and Ferb Get Busted!", "Phineas and Ferb's Quantum Boogaloo", "Wizard of Odd").
- This is the second time neither Doofenshmirtz nor Major Monogram appear in an episode ("Isabella and the Temple of Sap"). It is also the sixth time Major Monogram does not appear in an episode ("Isabella and the Temple of Sap", "Canderemy", "Phineas and Ferb Interrupted", "Monster from the Id", "What A Croc!").
- This the second time Baljeet is seen wearing a ninja suit ("Quietest Day Ever").
- This is the second time something is said to be cold and unforgiving ("Skiddley Whiffers").
- This is the third big idea to begin with "Ferb" ("Got Game?", "Ferb Latin").
- The 80s rock music from "Bubble Boys" plays when Baljeet first appears.
- This is the final speaking appearance of Suzy.
- This is the only episode where Perry never appears in agent mode.
When Worlds Collide
- This is the third time the Shooting Star Milkshake Bar is seen ("Out to Launch", "The Chronicles of Meap").
- Dr. Doofenshmirtz wears Peter the Panda slippers in this episode.
- It is revealed that Buford has a lucky tambourine.
- It is revealed that Candace is only allowed to try and bust the boys once a day.
- It is revealed that Major Monogram wears an exfoliating mask at night.
- This is the fourth time the first scene is at Doofenshmirtz Evil Incorporated ("Hail Doofania!", "A Real Boy", "The Remains of the Platypus").
- This is the third episode to take place entirely at night ("Candace Gets Busted", "That's the Spirit").
- This is the second time Isabella tries to hold Phineas' hand, but instead holds another one ("That's the Spirit").
- This is the second time Isabella wears pants ("Put That Putter Away").
- This is the third time someone yells "My watermelon" (Phineas and Ferb the Movie: Across the 2nd Dimension, "The Mom Attractor").
- This is the second time Perry is trapped by something that wasn't meant to trap him ("Chez Platypus").
- This is the second time roadside attractions are mentioned ("Road Trip").
- This is the seventh episode with a song continued in the end credits ("I Scream, You Scream", "The Best Lazy Day Ever", "Hail Doofania!", "Tip of the Day", "Tour de Ferb", "A Phineas and Ferb Family Christmas").
- The Farmer and his wife are seen again.
- The first eight amendments and the twelfth amendment of the Bust Accord were written by Robert F. Hughes, while the other three were filled out by the prop guy.[5]
- This is the only episode with a production code ending in A where the credits have a minor change from the episode, with Buford saying a line which he does not say in the episode.
What'd I Miss?
- This is the second episode to revolve around squirrels ("Comet Kermillian").
- It is revealed that Buford might have rabies.
- This is the second time Doofenshmirtz wins a contest, the first being by default in the Inator Competition hosted by L.O.V.E.M.U.F.F.I.N. ("Robot Rodeo").
- This is the second time Linda approves Phineas and Ferb's big idea, the first time being their promotion of aglets ("Tip of the Day").
- Vanessa appears in this episode, but does not speak. It is the second time she appears without her usual outfit and the second time in swimwear ("Hail Doofania!", "Finding Mary McGuffin").
- This is the third episode to be told through flashbacks ("The Monster of Phineas-n-Ferbenstein", The Remains of the Platypus").
- This is the third time someone mentions not being able to see a flashback ("Phineas' Birthday Clip-O-Rama!", "Doof Dynasty").
- This is the third time Candace is hit by one of Doofenshmirtz's inators ("Canderemy", "Misperceived Monotreme").
- This is the second time Ferb wonders what he missed ("Traffic Cam Caper").
- This is the second time Doofenshmirtz enters a cooking contest ("Meatloaf Surprise").
- Isabella is seen with "the big-pleading eyes" again ("Isabella and the Temple of Sap").
- This is the fourth time another agent besides Perry fights Doofenshmirtz ("It's About Time!", "No More Bunny Business", "Perry The Actorpus").
- The "unexpected line" is said again ("Rollercoaster").
- This is the fourth time Buford is seen crying ("Voyage to the Bottom of Buford", "The Lemonade Stand", "Phineas' Birthday Clip-O-Rama!").
- This is the second time Buford mentions rabies ("Wizard of Odd").
- Agent R is likely to have been recruited by Perry while in Africa ("Where's Perry? (Part Two)").
- This is the sixth time Ferb's lack of speaking trait is mentioned ("Rollercoaster", "Get That Bigfoot Outa My Face!", "Nerds of a Feather", "Rollercoaster: The Musical!", "Sleepwalk Surprise").
- Ducky Momo appears again.
- This is the only episode not to feature Candace and Linda arriving in the backyard after the big idea's disappearance.
- This is the second time Baljeet attempts to imitate a member of the Flynn-Fletcher family ("Not Phineas and Ferb").
- This is the ninth time Doofenshmirtz is referred to as a pharmacist ("Run Away Runway", "The Ballad of Badbeard", "Brain Drain", "Road Trip", Phineas and Ferb the Movie: Across the 2nd Dimension, "Skiddley Whiffers", "Bullseye!", "Lotsa Latkes").
- This is the second time a symbiotic relationship is mentioned ("Lotsa Latkes").
- Doofenshmirtz breaks the fourth wall by mentioning a shot of his building in the flashback.
- Buford breaks the fourth wall by referring to the song.
Road to Danville
- Phineas and Ferb only appear in the beginning and the end of this episode, while the rest focuses on Perry and Doofenshmirtz.
- Candace, Linda, and Lawrence do not appear in this episode.
- This is the second time Candace doesn't appear in an episode and the second time Isabella appears without Candace ("Bully Bromance Breakup").
- It is revealed that Doofenshmirtz has titanium arms, which would mean that he is a double amputee.
- This is the ninth time Doofenshmirtz succeeds on his scheme ("Hail Doofania!", "At the Car Wash", "Robot Rodeo", "Split Personality", "Candace Disconnected", "Magic Carpet Ride", Phineas and Ferb the Movie: Across the 2nd Dimension, "Cranius Maximus").
- Buford breaks the fourth wall in the beginning of the episode.
- This is the fourth episode that is from the point of view of someone other than Phineas and Ferb for the majority of the time ("Isabella and the Temple of Sap", "Not Phineas and Ferb", "Delivery of Destiny").
- This is the third episode centered in only one of the main plots of the show ("Phineas and Ferb Get Busted!", "Ferb TV").
- This is the seventh time Major Monogram doesn't appear in an episode ("Isabella and the Temple of Sap", "Canderemy", "Phineas and Ferb Interrupted", "Monster from the Id", "What A Croc!", "Ferb TV").
- This is the second time Phineas and Ferb regret their big idea ("She's the Mayor").
- This is the fourth time Baljeet says "Where's Perry?" ("Bowl-R-Ama Drama", "That's the Spirit", "Monster from the Id").
- This is the third time Perry and Doofenshmirtz work together ("Phineas and Ferb Interrupted", "Agent Doof").
- This is the second time Doofenshmirtz rides on Perry's jetpack ("The Magnificent Few").
- This is the eighth time summer ending is mentioned ("Rollercoaster", "I, Brobot", "Ain't No Kiddie Ride", "Wizard of Odd", "Phineas and Ferb: Summer Belongs to You!", "Cranius Maximus", "Minor Monogram").
This Is Your Backstory
- Three things are revealed in this episode:
- Charlene knows about Norm.
- How Doofenshmirtz came to America.
- Perry keeps pictures of him and Doofenshmirtz in his wallet.
- First two-part episode to not focus on Phineas and Ferb.
- This is the third clip episode. ("Phineas and Ferb Musical Cliptastic Countdown", "Phineas' Birthday Clip-O-Rama!")
- Second time that most of the episode focus on Doofenshmirtz. ("Road to Danville")
- Doofenshmirtz mentioned the phrase "True evil is born from pain and loss". ("Phineas and Ferb the Movie: Across the 2nd Dimension")
- Fifth two-part episode that Isabella does not appear in, and is also the only two-part episode in Season 3 that she is absent in. ("Phineas and Ferb Get Busted!", "The Lake Nose Monster", "Phineas and Ferb Hawaiian Vacation", "Nerds of a Feather")
- Fifth episode that is from the point of view of someone other than Phineas and Ferb (or their counterparts) for the majority of the time. ("Isabella and the Temple of Sap", "Not Phineas and Ferb", "Delivery of Destiny", "Road to Danville")
- This is the second time Doofenshmirtz's plan has transformed him into a large grotesque creature ("That's the Spirit").
- First time the father of Doofenshmirtz appeared outside of flashbacks, and the first time he speaks English.
- Third episode where the episode changes in time. ("Remains of the Platypus", "What'd I Miss?")
- This is one of the rare occurrences where Doofenshmirtz calls his nemesis Perry instead of "Perry the Platypus".
- 16-year-old Heinz wears the same clothing that the present Doofenshmirtz wore in "Unfair Science Fair". Doof also wore similar clothers in a flashback in "At the Car Wash".
- Third time Doofenshmirtz says "Curse you and thank you". ("Gaming The System", "Split Personality")
- Doof is mistaken with a pharmacist again.
- When Doofenshmirtz talks about the backstories that appeared in previous episodes, he uses the exact same dialogue word-for-word when he talks about them again in this episode.
- If they spent a full day hitting ping pong balls, Phineas and Ferb would have had to have hit roughly 18.09 balls a second to reach 1,562,978. If they spent half the day playing table tennis, nearer to the time they would have if they woke up near usual and played till dinner, supported by it being light outside, they'd have to hit the ball an average of 36.18 times a second with no breaks. With the length of a table tennis table being 2.74 m, the ball would have had to have been travelling at a minimum speed of 99.13 m/s or 356.88 km/h (221.75 mi/h).
- This episode marks the last appearance of Balloony so far, not counting cameos in other series.
- The America backstory is the only one to not originate from another episode, being completely original to this one.
Blackout!
- It is revealed that Buford screams in a closet to make his voice raspy.
- It is revealed that Lawrence has a smartphone.
- This is the third time there has been no power ("S'Winter", "The Monster of Phineas-n-Ferbenstein").
- This is the eighth episode with only one word in its title ("Rollercoaster", "S'Winter", "Atlantis", "Canderemy", "Bullseye!", "Excaliferb", "Doofapus").
- This is the fourth episode to remain at night the entire time ("Candace Gets Busted", "That's the Spirit", "When Worlds Collide").
- This is the third time Linda and Lawrence have a private dinner together ("Chez Platypus", "Where's Perry? (Part Two)").
- This is the sixth time Candace loses her cellphone ("Greece Lightning", "Candace Disconnected", "Meatloaf Surprise", "Agent Doof", "Sipping with the Enemy").
- This is the fifth episode to begin at Doofenshmirtz Evil Incorporated ("Hail Doofania!", "A Real Boy", "The Remains of the Platypus", "When Worlds Collide").
- This is the second time Phineas and Ferb's invention remains unseen ("Candace Disconnected").
- This is the fourth time "My watermelon" is heard (Phineas and Ferb the Movie: Across the 2nd Dimension, "The Mom Attractor", "When Worlds Collide").
- Doofenshmirtz's inator causes a power outage again ("S'Winter").
- This is the fifth time Lawrence's car appears, and third time he drives it ("Dude, We're Getting the Band Back Together", "Bullseye!", "Sci-Fi Pie Fly", "Sipping with the Enemy"). This is also the first time Linda is in his car.
- This is the second time Buford says "Whatcha doin'?" before Isabella could ("Out of Toon").
- This is the second time Lawrence calls Linda "ducky" (" Ladies and Gentlemen, Meet Max Modem!").