There's a Mouse in the House

The thirtieth episode of Season 30. A giant mouse has invaded Doofenshmirtz Evil Incorporated. Doofenshmirtz and Perry work together to capture the mouse in a whole slew of ways.

Episode Summary
Phineas and Ferb are busy putting the final touches on a mysterious invention. Mario wonders what it is, but Phineas says he'll have to wait and see. At Doofenshmirtz Evil Inc, Doof is busy repairing his previous Inator. Norm panics, because there's a small, tiny mouse. Doof tells Norm to shut up. Norm's panicking makes him run into the Bigger-Inator. The ray zaps the mouse. Doofenshmirtz can tell they're in big trouble. Coincidentally, Perry comes in and spots the mouse. Doofenshmirtz is glad to see Perry. He asks if he can help him out, by catching the mouse... somehow. Perry agrees and the duo gets to work. Doofenshmirtz traps the mouse inside a costume of Der Kinderlumper. The rodent rips it to pieces. Perry traps it in a bear trap. No good. Doofenshmirtz uses the baby swing trap. It obviously doesn't fit. Perry's next idea is to trap him in a giant building like thing. No good. Doofenshmirtz reuses a lot of his traps. Perry's last resort is a giant bubble. Nothing. The mouse has almost destroyed the entire place. But Perry has one final idea. He gets out the Be-Gone-Inator and zaps the mouse. Doofenshmirtz thanks Perry a million times and he's appreciated. Back in the yard, Birdo says that was their best invention. Yoshi suggests they make something like that again.

Songs
None

The "Too Young" Line
None

Ferb's Line
None

Whatcha Doin
None

Perry's entrance to lair
None seen

Evil Jingle
Doofenshmirtz Evil Incorporated!

Continuity

 * Third time Phineas and Ferb's invention is not seen ("Candace Disconnected", "Blackout!")
 * Eighth episode where Phineas and Ferb aren't in the major plot ("Isabella and the Temple of Sap", "Not Phineas and Ferb", "Delivery of Destiny", "Road to Danville", "This Is Your Backstory", "Settling Differences")
 * A costume of Der Kinderlumper is seen ("Der Kinderlumper")
 * Doofenshmirtz says Perry is appreciated ("Road to Danville")
 * The Bigger-Inator and Be-Gone-Inator are used ("Spa Day", "Just Passing Through")
 * Doofenshmirtz fixes his previous Inator ("Waluigi Gets the Jackpot")
 * The following traps are used:
 * Baby swing ("The Mom Attractor")
 * Invisible cage ("Don't Even Blink")
 * Ice tray ("Out to Launch")
 * Carpet ("The Chronicles of Meap")
 * Bird cage ("Mom's in the House")
 * Duct tape ("Runaway Runway")
 * Fly paper ("The Flying Fishmonger")
 * Very complicated trap ("Blackout!")
 * Pickle ("Mommy Can You Hear Me?")
 * Arms ("Rollercoaster")
 * Egg ("Last Train to Bustville")
 * Scuba helmet ("The Lake Nose Monster")

Allusions

 * Super Mario Bros.: A big part of the season
 * VeggieTales: The bear trap is similar to the one in the silly song Larry never got to sing in "Madame Blueberry"
 * The Avengers: The giant building is similar to STARK