User blog comment:AgentP/Phineas and Ferb movie/@comment-1647442-20100126040734

Okay. Doofenshmirtz creates the speech-inator to make animals talk.Why would he want to do this, you ask? So he can make all the pets in the tri-state area talk! His reason for that is, the pets will drive their owners crazy with their constant talking, causing them to take them to the Doofenshmirtz Approved Pound-inator. He will then hit them with his old turn everything evil-inator so he will have an unstoppable army of talking animals! Perry tries to stop him, but his speechinator explodes, causing Perry to talk, but get sent miles away from Danville! Phineas and Ferb wait until about 3:00 am waiting for perry to come home, before they sing a different song about bringing perry home. Perry contacts Monogram asking for help, but Francis and Carl think it's an Agent P impostor, since he can now talk. Perry proves it, and they try to find his whereabouts. His hoverjet is broken, but he walks to try to find the way. With his new found voice, he sings a song entitled "One Flipper at a Time" about him walking home. Monogram never believed him, so they find him and send a bunch of agents to capture this Perry impersonator. They bring him back to OWCA HQ where he just leaves, hearing Phineas singing for him to come back. Everyone is happy.

--Credits--

Doofenshmirtz is seen walking through the woods (The explosion sent him away too) He tries to say something, but a platypus noise comes out. There are subtitles of what he's trying to say. "Oh come on! Perry the Platypus gets a voice, and here I am with a Platypus voice! CURSE YOU SPEECHINATORRRrrrr! After that for the rest of the credits, it plays a new song performed by Dawn of Night.