Phineas and Ferb, Season 3

Phineas:
What if bounce houses were made for bigger kids?

Buford:
Hey!

Phineas:
Slightly bigger kids. And what if they just happened to be totally amazing? I stand before you today and I hereby declare that... that uh, a little help Ferb? [Ferb turns on a fan blowing leaves and newspapers toward Phineas] That nobody has yet done justice to the bounce house concept, and that it is up to us to show the world what a bounce house can truly be. For if not us, then who? And if not now, then when? And if not when, then...something else! Gentlemen I know what we are going to do today, but first, answer me this: Where's Perry? [Fan stops] No seriously, where is he? I don't- I haven't seen him.