That's the Spirit

It's Halloween night and the kids encounter a strange boy named Russel and his father who are convinced their house is haunted. Meanwhile, Dr. Doofenshmirtz's disdain for grass causes him to invent a "mind-transfer-inator" enabling him to merge minds with a cow and destroy all the grass in the Tri-State Area. Unfortunately, his plan backfires and he transforms into a scary "were-cow" that wreaks havoc any time there is a full moon. It's now up to Agent P to stop him and save Danville.

Songs
Were-Cow on the Rampage

Whatcha doin'?
None.

Perry's entrance to his lair
A Jack-O-Lantern

Evil Jingle
Doofenshmirtz Evil Incorperated

Memorable Quotes
Candace: Oh please.

Russel: Oh this always happens.

Phineas: Don't panic everyone.

Isabella: How can I panic when I'm holding your hand?

Buford: I think that's my hand.

Isabella: Ew!

Buford: What kind of person hands out these wierd orange peanuts? We gotta find a better neighborhood.

Phineas: That's strange. I've never seen this place before. You'd think we would have noticed it.

Buford: I'm gonna give those orange peanuts a second look.

Phineas: Nice fairy princess costume. Where'd you get it?

Isabella: Actually, I'm not wearing a costume.

Phineas: Oh, okay.

Isabella: I got it at the Googolplex Mall.

Buford: The light under his chin makes his story pretty convincing.

Baljeet: Actually, there is no scientific evidence for the existence of ghosts.

Buford: What do you know? You're a daffodil.

Baljeet: Daisy!

Buford: Case closed.

Background Information

 * On February 10, 2011, Variety reported that Michael Douglas and his 10-year-old son Dylan will guest star in a haunted house episode. No further information was available at this time, but it was thought to be a Halloween special.
 * The episode name was first revealed on Netflix and confirmed on Zap2It

Production Information

 * This episode was aired on Disney Channel On Demand on September 30, 2011.

International Premieres

 * November 9, 2011 (Disney XD Germany)

Continuity

 * This is the second episode to not take place during the summer, the first being "Phineas and Ferb Christmas Vacation!".
 * This is the second time Ferb wears his Frankenstein costume since "One Good Scare Ought to Do It!".
 * This is the third Halloween-themed episode, but the first one to actually take place on Halloween. The other episodes are "One Good Scare Ought to Do It!"and "The Monster of Phineas-n-Ferbenstein".
 * Buford is dressed as a pirate again. He was first a pirate in "The Ballad of Badbeard".
 * Fourth time Phineas is scared since "One Good Scare Ought to Do It!" "Gaming the System" "Are You My Mummy?"

Errors

 * When Doofenshmirtz is in were-cow form, he breaks into a supermarket and drinks a carton of milk. Cows, however, drink water and give milk.

Cast

 * Vincent Martella as Phineas
 * Ashley Tisdale as Candace
 * Thomas Sangster as Ferb
 * Caroline Rhea as Mom
 * Mitchel Musso as Jeremy
 * Dan Povenmire as Dr. Doofenshmirtz
 * Jeff "Swampy" Marsh as Major Monogram
 * Richard O'Brien as Dad
 * Dee Bradley Baker as Perry
 * Alyson Stoner as Isabella
 * Maulik Pancholy as Baljeet
 * Bobby Gaylor as Buford
 * Michael Douglas as Haunted House Resident
 * Dylan Douglas as Russel

Ese es el Espíritu