When We Didn't Get Along

"The Moments When We Didn't Get Along" is the song from the episode "It's About Time!". The song describes Perry the Platypus's feelings after his nemesis, Dr. Doofenshmirtz, stops fighting him in favor of another secret agent. It is revealed how much Perry's nemesis means to him. Unlike most songs in the series, the singer of this song is not shown on-screen.

Lyrics
Without your schemes my life, it seems, is empty I spent all my time keeping you from doing wrong You were my only nemesis I'd foil your plans, but still I miss The moments when we didn't get along So search your heart, please, Doctor D And I am sure that you will see That you were always meant to be My only lifelong enemy But now you're doing battle with a panda from Seattle I miss the moments when we didn't get along Ooh.

Background Information

 * This song is likely an allusion to the song "When She Loved Me" from Toy Story 2, including similar melody, lyrics, and some similar movements (Such as the shot with Perry being swung in circles).
 * This song, as well as Perry's story in "It's About Time!", parodies elements of a romance film. The scene in which Doofenschmirtz and Perry run towards each other on a beach in slow motion makes an obvious reference to romance films, except for the fact that while such scenes in a romance film will end up with passionate moments, Perry hits the doctor in the face when he comes into Perry's reach.