"Misperceived Monotreme"
Jeremy says "oh, who's a beautiful boy?" to Perry
Candace and Jeremy with Perry.
Season: 3
Production code: 305b
Broadcast number: 121
Story by:
Martin Olson
Written & Storyboarded by:
Tom Minton
Directed by:
Jay Lender
Broadcast Information
Disney Channel US Premiere:
May 13, 2011
Disney XD US Premiere:
June 6, 2011
International Debut:
July 25, 2011 (Disney Channel Brazil)
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Paired with
"Ask a Foolish Question"
Book Adaptations:
Platypus Power!
DVD Releases:
The Perry Files
Sorry to be so harsh Agent P, but today is a very special day: Your one-hundredth battle with Dr. Doofenshmirtz!

Major Monogram, to a platypus he believes is Perry

Perry misses his 100th battle against Dr. Doofenshmirtz when Candace takes him to the Charity Pet Wash with her. Perry's absence goes unnoticed when the zookeeper's typical platypus at the Danville Zoo stops Dr. Doofenshmirtz's plan to zap his brother with his "Least-Likely-inator." Meanwhile, the boys build a fun house Phineas and Ferb style.

Episode Summary

Phineas and Ferb are watching the news. The Danville zoo has a special about their latest new animal, a platypus that likes eating sandwiches. After debating whether "platypus" is a word, the interviewers decide to go see some other animals in the zoo. When they aren't looking, the platypus escapes into a delivery truck, as it smelled a sandwich that was left in there. Meanwhile, Linda calls Candace, telling her to do something instead of waiting for Jeremy to call her. Candace promptly gets a call from Jeremy. He tells her that he will be volunteering at a charity pet wash at the park. Candace shoos Perry out of the room, and continues her conversation with Jeremy. He comments that one can tell a lot about a person's personality by the way they treat animals, and tells her that she should bring Perry to the pet wash so they can wash him together. Candace reluctantly accepts.

Phineas suggests to Ferb that they add fun to everything. Ferb bends a piece of paper over his nose, making it look like a house. Phineas is inspired to make their house into a fun house. Perry's watch beeps, but before he can get to his lair as Agent P, Candace picks him up and announces that she's "borrowing" him. At headquarters, Major Monogram wonders where Agent P is. Carl makes himself useful by fixing Perry's hover chair, adding a hidden button so it will go to Doofenshmirtz's lair and come back automatically. He thinks Agent P's lair is kind of cute, since everything is platypus sized, "like kindergarten".

At the backyard, Phineas and Ferb accept their delivery of fun house materials. It happens to be the same delivery people as the ones who just delivered to the zoo. The zoo platypus, who was hiding in the truck, tumbles out with the fun house stuff and lands near the tree in the yard. Major Monogram is beginning to worry about Agent P, and orders Carl to open all the entrances thinking Perry can't get inside to his lair. Carl is eating his extremely stinky peanut butter, banana, and sardine sandwich as he does this, attracting the sandwich-loving platypus through the tree entrance. He lands in Agent P's chair, and Major Monogram, mistaking it for the real Agent P, tells the platypus that today is his 100th battle against Doofenshmitz. They planted hidden cameras all over Doofenshmirtz Evil Incorporated to watch all the action (and enjoy some cheap laughs). They even recorded hours of footage of Doofenshmitz singing in the bathroom. Monogram sends the platypus to his mission in the hover chair.

At the pet wash, Jeremy and Candace try to wash Perry. However, he refuses to go in the bathtub, and manages to squirm his way out of Candace's hands, taking refuge behind a tree. Jeremy finds him and hands him back to Candace, though Perry is still squirming.

At Doofenshmirtz Evil Incorporated, Doofenshmirtz turns off the news, now broadcasting about the missing platypus in the zoo. The platypus arrives and Doofenshimrtz also mistakes it for the real Perry. He quickly traps it and throws the remote onto the edge of a table. Doofenshmirtz shows him the Least-Likely-inator, which will make a person "do the least likely thing in their nature". He accidentally fires it, hitting Irving as he walks down the street with Isabella. He then does the least likely thing he would ever do: say that Phineas and Ferb are losers and flirt with Isabella.

Doofenshmirtz explains why he built the Least-Likely-inator: not only to make his daughter obey him and his father love him, but mainly to humiliate his brother in front of the legislature since it was the least-likely thing he would do. Apparently, Doofenshmirtz is hoping that this will cause the legislature to give the Tri-State Area to him, even though that's not how democracy works. The remote that trapped the platypus falls off the table, releasing the platypus. He starts to lick a spilled coffee on the floor.

Meanwhile at the Flynn-Fletcher house, Phineas and Ferb along with their friends are starting to make the house into a fun house. So far, there is a wall slide, a clown room, a cookie room, and a spinning basement.

The platypus is still licking the spilled coffee. Doofenshmirtz believes that he's using a fighting technique called "Singapore Crab", and then thinks that "Perry" is playing mind games with him. The platypus sees the sandwich display case, full of sandwiches, and it runs to it and knocks it over to get to the sandwiches, crushing Doofenshmirtz in the process. The sandwiches scatter, landing on Doofenshmirtz's various switches and devices. The platypus looks as though he is about to attack Doofenshmirtz, but simply picks up a sandwich that is near his face. Doofenshmirtz runs toward the platypus, but it picks up another sandwich on top of a lever, deploying a brick wall that Doofenshmirtz runs into. Major Monogram says that this is called the "Marsh Maneuver", which he hasn't seen since 1974. Carl comments that Monogram had a perm back then, and Monogram retorts by telling Carl to stay off the Internet.

Candace washes Perry, and Jeremy replies that "Perry's drowning in motherly love".

The platypus is still running around eating sandwiches, and narrowly escapes being squished on a table by Doofenshmirtz. Doofenshmirtz falls off the table and gets a pitcher of water poured on himself. The platypus eats another sandwich, opening the roof.

Candace and Jeremy take Perry home, only to discover everyone exploring the fun house. Jeremy thinks it's cool, while Candace obviously does not. Perry tries to get out, only to get lost inside a hall with never ending doors. They all land in Candace's room, which has become the cookie room. Candace is obviously aggravated, but she replies that she will come inside after getting the groceries out of the car.

Doofenshmirtz tries to zap the platypus with the Least-Likely-inator, but he throws a sandwich in the hover chair first. The platypus runs toward the sandwich and eats it, activating the automatic button. Doofenshmirtz tries to fire it at him before it's too late, but he turns it around too far, causing a cable on the machine to break and start spraying everywhere. The platypus rides the chair back to Perry's lair.

Meanwhile, Candace got hit by the Least-Likely-inator's final stray blast, causing her to clean the whole thing up hypnotically before Linda could see it.

The platypus leaves the lair and Perry arrives. Major Monogram and Carl congratulate him for his great work, calling him a star. Perry is confused since he didn't do anything.


For a full transcript of "Misperceived Monotreme", click here.


End Credits

Last verse of Funhouse


Misperceived Monotreme title card
The image gallery for "Misperceived Monotreme" may be viewed here.

Running Gags

Ferb's line/The "Too Young" Line

Phineas: Let me guess, you guys just delivered to the zoo?
Delivery Man 1: Oh, yes. Yes, we did.
Linda: You cleaned the whole thing up before I could see it?

Candace: Yes.
Linda: Well that seems unlikely.

Ferb: Yes, yes it does.

Where's Perry?/Oh, there you are, Perry

By Candace:

Candace: Hey, guys, where's Perry?

Phineas: I think he went that way.

Candace: Oh, there you are, Perry.

By Major Monogram:

Major Monogram: Where's Agent P? You set off the wrist beacon, right, Carl?

By Carl:

Carl: Oh, there you are, Agent P.

What'cha doin'?


Perry's entrance to his lair

Carl tests all the secret agent doors to see if any of them are jammed (Perry was late for his mission). The zoo platypus smells Carl's sandwich and instinctively walks into the tree elevator as it opens.

Evil Jingle

Doofenshmirtz Evil Incorporated!

Memorable Quotes

Phineas: (referring to zoo platypus) Hey, it looks like you, Perry. Of course, it doesn't look nearly as smart.
(Perry chatters)
Phineas: You know, Ferb, I've been thinking since there's nothing more fun than fun, why not add fun to everything?

(Ferb takes out a piece of paper, folds it in half and sets it on his nose)

Fun shoes... Fun oatmeal... Fun origami...well, origami's already fun. (He sees the paper on Ferb's nose, that looks similar to a house)! Great idea, Ferb! We'll turn our house into a funhouse! By, you know, adding fun!
Major Monogram: Carl, what is in that sandwich?!

Carl: (enjoying the sandwich) Peanut butter, bananas, and sardines!

Major Monogram: Oh for Pete's sake, I can see the smell from here!
Candace: I'm borrowing your platypus.

Phineas: Ok. Have fun! (Perry chatters)

Candace: (to Perry) Will you stop squirming? You're a platypus. It's not like you have anywhere you need to be!
Isabella: Hey, Irving. Did you hear? Phineas and Ferb are building a funhouse.
Irving: Really? (Gets zapped by Dr. Doofenshmirtz's Least-Likely-inator) Who cares? I'm too cool for those losers. Say, you're cute! (Irving changes position and falls down) There used to be a lamppost there.
(after Doofenshmirtz hits the brick wall)

Major Monogram: Oh... the Marsh Maneuver! I haven't seen one of those since 1974!
Carl: '74? You had a perm back then!

Major Monogram: Stay off the Internet, Carl!

Background Information

  • If one looks carefully when the platypus pushes the sandwich stand, he was on his hind legs like Perry, and his eyes were focused.

The OWCA logo seen for the first time.

  • A part of the O.W.C.A.'s logo can be seen while Monogram and Carl are watching Doofenshmirtz. Also, when Perry lands on the chair in his lair at the end, Monogram mentioned the fight was a hit on the "'OWCA' internet".
  • Monogram realizing the faux-Agent P is not in uniform is similar to the Evil-Con registrar realizing that the faux-Dr. Wexler is not wearing an Evil-Con badge in "A Hard Day's Knight".

Production Information

International Premieres

  • July 25, 2011 (Disney Channel Brazil and Latin America)
  • July 28, 2011 (Family Channel)
  • October 3, 2011 (Disney XD UK)
  • October 9, 2011 (Disney Channel Asia)
  • October 16, 2011 (Disney XD Spain)
  • October 21, 2011 (Disney XD Germany)
  • November 12, 2011 (Disney Channel Portugal)
  • December 6, 2011 (Disney Channel Scandinavia)
  • December 17, 2011 (Disney Channel Bulgaria)
  • December 24, 2011 (Disney XD Poland)


  • Along with "Ask a Foolish Question", most of the multiple line closed captions must be read from bottom to top instead of top to bottom.
  • It's unknown why Major Monogram, Carl, and Doofenshmirtz were unable to tell the difference between Perry and the Platypus that escaped from the Zoo. It may be colored that way so the audience can tell if it is a different platypus.
  • When Candace picked Perry up whilst he was using his watch, in the next scene, the watch is gone.
  • In the opening scenes at the house, Perry doesn't have his top hairs, but while Candace is calling Jeremy, he has his top hairs again.
  • This is actually Perry's 118th battle with Doofenshmirtz (according to the list of episodes up to this point). we can also mention here that "Phineas and Ferb Christmas Vacation!" in the future, also "Phineas and Ferb's Quantum Boogaloo", they hadn't fought in "Isabella and the Temple of Sap", and perhaps the events of "Unfair Science Fair Redux (Another Story)" count as the battle of "Unfair Science Fair" (also they didn't even fight in the Redux, they went to the store), they hadn't fought in "Hail Doofania!", "No More Bunny Business", "I Was a Middle Aged Robot", "Undercover Carl", "Traffic Cam Caper", "Perry Lays An Egg", "Thaddeus and Thor" and "The Monster of Phineas-n-Ferbenstein", also mention that "Phineas and Ferb Get Busted!" and "Wizard of Odd" were dreams, they hadn't fight in and which make a total of: 104 battles.
    • However, creators Dan Povenmire and Jeff "Swampy" Marsh confirmed the episodes don't take place right after the previous.
  • As Doofenshmirtz looked outside, the color of the building was indigo but on the other scene it is now violet.
  • The mirror in the clip the O.W.C.A recorded was just triangles and a bit of Doofenshmirtz's hand and brush.
  • During the basement spin, the button on Ferb's shirt wasn't outlined.
  • When Major Monogram tells Carl he's in the way the ear piece on Carl's glasses disappear for a moment.
  • When they first get to the the Pet Wash, while Candace and Jeremy are talking and the camera is zoomed out from Perry, his eyes are blue instead of brown.
  • When Candace says "Oh, there you are, Perry", Perry's arm with the watch on moves suddenly.
  • Before Phineas and Ferb look at their blueprints for the funhouse, Ferb's shirt button is missing.
  • When the platypus knocks the display case his eyes are focused, looking like Perry's.
  • While Phineas and Ferb is dancing with the Navy with wavy hair, Phineas's shoes turned black instead of blue.
  • When Candace is looking out the window talking to Mom, the room in the window is her normal bedroom, not the funhouse styled bedroom seen just minutes ago.
  • Also when Candace looked out her window, her bedroom faces the front yard, usually her room faces the backyard while the boys' room faces the front.


  • The beginning of My Undead Mummy can be heard when we see the pet wash for the first time.


  • Jeff "Swampy" Marsh - When Doofenshmirtz hits the brick wall, Monogram calls it the "Marsh Maneuver". This is a reference to his voice actor, Jeff "Swampy" Marsh.
  • Disneyland's Haunted Mansion - When Baljeet walks past the second last mirror in the Hall of Mirrors, he sees a monster-like version of himself. When he comes back, he is only stretched out, as the mirror normally would show him. This is the same in Disneyland's Haunted Mansion ride, only there are no fun house mirrors.
  • Looney Tunes - Doofenshmirtz running into the brick wall is most likely a reference to cartoons like the Looney Tunes which is known to feature stuff like that.
  • Shangri La The song Doofenshmirtz sings, Shangri-La, the name of the song might be a parody of "In Shangri-La" by The Rutles [1] (a Beatles Parody created by Eric Idle and Neil Innes).[2]
  • Apollo XVII mission - During the song Funhouse a view of Earth is shown. This is the famous shot taken by the Apollo astronauts during the final mission to the Moon in 1972.
  • Syfy's House of Imagination - Candace and Jeremy discover everyone exploring the Fun House in the song  Funhouse similar to Syfy's House of Imagination.
  • Futurama - Doofenshmirtz's "Singapore Crab" fighting stance resembles one that's often taken by the crustacean Doctor Zoidberg.
  • Hollywood - The truck that delivers the parts for the funhouse is from Foley Freight. In film and television, Foley refers to the process of creating sound effects in post-production. Appropriately enough, after the truck arrives we hear the sound effect of all the funhouse parts spilling out of it.




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