Heyyy...molecular transporter! So that's where that came from, I remember them saying that in the Gelatin episode...cool. Random moment there.
Anyway, this is one of my favorites. I love the fact everyone thinks Perry is in disguise as a teenage girl, lol. And Doofenshmirtz couldn't hit her at all, fantastic. So he does have morals...hmmm....
And the re-done Perry song...love it.