My girlfriend is a semi-acuatic mammal

Sumary
Doofenshmirtz is tired of not having a girlfriend so he makes and invention that turns the man into woman (The Change-Inator II) so he coul´d have more posibilities. Doofenshmirtz turns Perry into an atractive human woman and fall in love each other. And decide to marry. Meanwhile Phineas and Ferb find a platypus dead and beliving that it's Perry decide to make him a funeral.

The "Too Young line"
not sayd

Ferb's Line
Ferb:Well, Perry was more than a pet it was our friend and...(cryes) (Perry appears) Oh, there you are

watcha' doin
By Isabella

Evil Jingle
Evil Doofenshmirtz INC

End Credits
Doofenshmirtz in his bed cryes for the lost of his love

Allusions

 * Xena: Human girl Perry resembles to Lucy Lawless

cast

 * Vincent Martella as Phineas
 * Ashley Tisdale as Candace
 * Thomas Sangster as Ferb
 * Alyson Stoner as Isabella
 * Dan Povenmire as Doofenshmirtz
 * Dee Bradley Baker as Perry
 * Lucy Lawless as Human Perry
 * Jeff "Swampy" Marsh as Major Monogram