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The "O.W.C.A. agent beacons" are special agent beacons provided by Major Monogram to Phineas Flynn, Ferb Fletcher, Perry the Platypus, Terry the Turtle, Resistance Phineas, Resistance Ferb, Isabella Garcia-Shapiro, Pinky the Chihuahua, Peter the Panda and Baljeet Tjinder during their journey on the 2nd Dimension in "Phineas and Ferb: Across the 2nd Dimension (video game)".