"Well, that didn't work." Dr. Doofenshmirtz learns that tinfoil isn't strong enough to uproot buildings or halt the Earth's rotation even when subjected to very strong magnetic fields. ("Rollercoaster")
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Dr. Heinz Doofenshmirtz, (Dr. D, Dr. Doofenshmirtz, Doofenshmirtz, or Doof for short), is a 47...
With Mom at the grocery store, Phineas and Ferb decide to build a huge roller coaster spreading...