[s1e1] Rollercoaster/candace Loses Her Head -

: The invention conveniently vanishes just as Linda arrives, a staple "helpful" plot device usually caused by Dr. Doofensmirtz's antics.

: Perry the Platypus sneaks off to his secret lair to receive a mission from Major Monogram, marking the first time he foils Dr. Doofensmirtz's "Inator." [S1E1] Rollercoaster/Candace Loses Her Head

: Candace initiates her endless quest to "bust" her brothers by trying to show their mother, Linda, the massive coaster. : The invention conveniently vanishes just as Linda