[[ScoobyDoo http://tvtropes.org/pmwiki/pub/images/Scooby.png]]
[[caption-width:320: The trope namers ([[CrossOver and]] [[JohnnyBravo a guest]]) showing us how it's done.]]

A very standardized visual comedy sequence. A static shot down a hallway lined with doors, like a hotel or mansion corridor, comes up in the middle of the chase scene. The chaser and one or more groups of chasees enter a door. Then they emerge from a different door. Or opposite doors. Or in the wrong order. Or in dresses. Or some unrelated character makes a cameo. Or more than one of the character is visible at the same time. Basically, the characters run in and out of doors doing crazy stuff for a while, adding to the zaniness, one-upping themselves for about a minute. Rarely, a shot inside one of the rooms will be cut in.

A RunningGag, literally and figuratively, this one is unique for one reason; every instance of the trope subverts ''itself'' by the time the scene is over. Thus, this trope was discredited as soon as it was created, yet still good for a laugh.

Usually animated, but can be done in live action by [[MatchCut locking off]] the camera at the end of the hallway to hide edits and allow room switches. In animation, allows tremendous savings on budget, since the same cross-frame run-cycle cels can be used over and over and over for the entire sequence.

In video games, this could lead to an UrbanLegendOfZelda that going into certain doors in the right order will transport you to a secret room. Or something.
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!!Examples:

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[[folder: Advertising ]]

* In a rare use, a series of Cartoon Network gag commercials poking fun at the Blair Witch Project have one of the ScoobyDoo gang holding a camcorder during a chase scene and running into a few rooms shouting that she (almost certain it was Daphne) hates these door sequences before placing the camera down on an end table so it can resume the familiar angle as they go through the switch.

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[[folder: Anime ]]

* A similar gag shows up in an episode of ''OnePiece'' during the Thriller Bark arc, during a ChaseScene where Perona's minion Bearsy chases Ussop through a forest of pillars.
* A MentalWorld version showed up in the fourth episode of ''{{Kaiba}}''.

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[[folder: Film ]]

* Done in live action outdoors using a long series of paired signboards in the film version of ''{{Godspell}}''.
* In the Jackie Chan movie ''Mr. Nice Guy'', there is a brief door scene where two goons pursuing Jackie Chan's character pop out of two different doors, see each other, scream in surprise, and slam the doors. The first thug then hesitantly opens his door. The other door pops open and out comes Jackie Chan with the second thug in a headlock.
** The scene can be found [[http://www.youtube.com/watch?v=Od6XKVKT7Z4 here]], the above mentioned part at 1:35.
* Appears, of all places, in the ShowWithinAShow in the movie version of VForVendetta; though there's no doors, the music makes it perfectly clear they were going for this.
** This music was actually the main theme of the English comedic show ''Benny Hill'', which always ended with a burlesque chase sequence.
* The Leslie Nielsen movie ''Wrongfully Accused'' features such a chase in a sewer.
*Done with slight variation in the film adaptaion of LittleNemo. Flip and Nemo run between two rows of large pillars while being chased by guards.

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[[folder: Literature ]]

* The "world's funniest puppet show" in Barry Hughart's ''Eight Skilled Gentlemen'' is a very slight variation (and a massive elaboration) on this.

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[[folder: Live Action TV ]]

* ''[[BennyHill The Benny Hill Show]]''. Examples based off BennyHill rather than ''ScoobyDoo'' can usually be identified by the music. "[[http://www.youtube.com/watch?v=MK6TXMsvgQg Yakkety Sax]]" by Boots Randolph.
* Homaged in live-action with the ''DoctorWho'' episode "Love and Monsters". Some considered this overly cartoonish and silly, while others thought it was all part of an enjoyably offbeat SomethingCompletelyDifferent episode.
** Some however, have cited it as evidence that Elton, the episode's focus and narrator is an [[UnreliableNarrator unreliable one.]]
* A live action variant appears in an episode of ''ItAintHalfHotMum''. Through various misunderstandings, several of the main cast arrange secret trysts with two different women in the same house. HilarityEnsues as they burst in and out of the various doors to the same room, all miraculously managing to just miss each other.
* ''NedsDeclassifiedSchoolSurvivalGuide'' used a chase scene like this in one of the episodes, involving Ned and his friend Cookie being chased by Loomer (the leather jacket-sporting bully). It involved going up and down staircases, whirling in an out of a classroom, and even the three stopping at an intersection with Loomer patting Ned on the back.
* The live-action series ''The Ghost Busters'' uses this frequently.
* Used at the end of a video for PBS's ''SquareOneTV'', [[http://www.youtube.com/watch?v=BOk4cMfwsIY "Ghost of a Chance"]]

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[[folder: Video Games ]]

* In ''GrimFandango'', all of the tunnels in the Petrified Forest clearing lead to one another. Glottis notices the first time and says, [[LampshadeHanging "Hey, wait a minute."]]
* Most of the doors in town in ''The Secret of MonkeyIsland'' work this way, to keep you from being arbitrarily locked out of buildings you can't actually access. There are a few in ''The Curse of Monkey Island'' too, which are actually handy shortcuts from one end of the town set to the other.
* In ''SilentHill 2'''s Nightmare Hotel, one of the most {{nightmare fuel}}ish and {{Mind Screw}}y locations in the series, going in a room door dumps you out at a certain other door in the hallway, and one of the doors transports you to the otherwise-inaccessible east wing of the building.
* One of the ScoobyDoo video games actually ''uses this gimmick as a puzzle''; you go through three doors, then have to choose a fourth door that leads to a secret room. The secret? The key door is [[spoiler:whichever door the second door was.]]
* {{Marvel}} Ultimate Alliance had a more sinister version where an [[spoiler: Odin empowered Dr. Doom]] uses his powers to create a hall of doors like this, with the simple task of finding a way out. The trick is [[spoiler: to go back the way you came in.]]

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[[folder: Web Original ]]

* Turned on its head in the ''HitherbyDragons'' story "[[http://imago.hitherby.com/?p=452 Daphne and her dog]]": two of the characters enact this scene, but it is described as a warped effect of AlienGeometries, and not as funny '''at all'''.

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[[folder: Western Animation ]]

* This trope originated in [[BornInTheTheatre theatrical cartoons]] during the 1930s and '40s. TexAvery (creator of the cartoon character Droopy Dog) was fond of this during his days at [=MGM=], and its occurrence in the ScrewySquirrel cartoon ''Lonesome Lenny'' was not only over the top (with additional chasers and chasees being added at random, including a cow, a lech chasing a screaming woman, and various clones of Screwy and Lenny), but self-referential, as the cow briefly stopped in the middle of the chase to [[SignLanguage hold up a sign]] reading "Silly, isn't it?"
** The first use this troper knows comes in ''FlipTheFrog'' cartoons (early 1930s). It also pops up in Frank Tashlin's LooneyTunes short ''Porky Pig's Feat'' (1943).
** Tex Avery himself provided an interesting variation, rarely re-used these days: the chase sequence would happen in an originally seemingly normal room (with only two or three doors), but then additional doors would be quickly created as needed – the trick was to open a door violently, and a new opening was instantaneously created where it had hit the wall; this worked completely regardless of the door's hinges, so that when there was no room left on walls, doors were created on the floor and ceiling as well (an example of this, from ''Little Rural Riding Hood'', can be found [[http://www.youtube.com/watch?v=Suk9miYlp6k here]], at 1:39)... These scenes tended to be accompanied by the song "In and Out the Window".
* Used toward the end of Disney's ''AliceInWonderland'' when she gets stuck in the maze and tries to run away from the Queen Of Hearts's guards.
* Happens in ''AtlantisTheLostEmpire'' when the professors at the Smithsonian try to get away from Milo.
* The ''Series/DonkeyKongCountry'' episode "Raiders of the Lost Banana" has Donkey and Diddy briefly chase Polly Roger into this trope.
* Done in the ''FamilyGuy'' episode "[=McStroke=]", with Peter, Brian, Mr. Cow and two [=McBurgerworld=] security guards.
** And also in the much earlier episode "Family Guy Viewer Mail #1" during the ''LittleRascals'' spoof (the actual ''ScoobyDoo'' gang makes a brief appearance).
* Subverted in ''FostersHomeForImaginaryFriends'' - the camera is at the right angle, the hallway is full of doors, and the characters are being chased at the time. They run through the door, followed by what's chasing them, then... nothing for about one second, then the scene changes.
* ''JohnnyBravo'' used it during the self-referential Scooby CrossOver episode "Bravo-Dooby Doo". Eventually, it gets to the point where there are multiple Johnnys running through the doors ''at the same time''.
* The whole door chase sequence in ''Monsters, Inc.'' must have been inspired by this, those that might be the most unique variation of this trope in existence.
* {{Disney}}'s ''{{Robin Hood}}'' had a sequence using the fair tents between Robin and Little John, the guards, and Lady Cluck; it ended up with the large guards propelling one tent like a train with the appropos sound effect and a [[{{FoeTossingCharge}} mock American football run]]!
* ''ScoobyDoo'' made the trope enough of an institution that it became intimately associated with the various series, hence the name. Every modern usage includes at least a nod to the canine detective and the gang, if only in the music chosen. Even ''Scooby Doo'' itself can't use it straight anymore.
* ''TheSimpsons'' has, of course, spoofed this one.
* Used in ''[[{{Peanuts}} Snoopy Come Home]]'', when the annoying girl [[AllThereInTheManual Clara]] who kidnaps Snoopy and Woodstock chases them through her house.
* ''SouthPark'' used it during the episode "Cartman Joins NAMBLA", in a Scooby-esque chase scene between a large group of young boys, a gang of naked paedophiles (NAMBLA), the North American Marlon Brando Look Alikes (the "other NAMBLA"), the police and the FBI, and Kenny chasing his pregnant mother with a plunger.
* Pops up in the ''TeamoSupremo'' HalloweenEpisode.
* Done in the ''TeenTitans'' episode "Mad Mod", during a ''ScoobyDoo''-inspired musical chase scene with the Titans pursuing Mad Mod through his surreal, trap-laden lair. This also contains a number of references to the ''Yellow Submarine'' doors, with Beast Boy doubling as the animals.
* A later episode, also featureing Mad Mod, had them do it with cars in the middle of a street. Though the camara panes across the street the effect is the same.
* A sequence early in the Beatles film ''YellowSubmarine'' features a variant on this, where creatures and things ran back and forth between doors in a long hallway only when the main characters were not present.
* Spoofed in the ''DrawnTogether'' episode "Clara's Dirty Little Secret", which first showed a similar situation with the house guests chasing each other and emerging from random doors, then [[RevealShot zoomed out to reveal]] that the doors were all connected by a series of tubes, which the characters swam through.
** [[MemeticMutation A series of tubes, you say?]]
* ''RockosModernLife'' had one, but near a French canal instead of in a building. The chase involved Rocko trying to find and impress a female wallaby, Heffer following a truck advertising a Chewy Chicken restaurant, and an insane tour guide hunting them down in his bus. At one point, the characters start walking up and down the sides of buildings and riding boats through the canal.
* Used in ''{{BB3B}}'' when the kids take their grandmother whist she is still on a hospital bed and run away from the robots. However, the order of who is chasing who doesn't change.
* Hilariously parodied in the ''FairlyOddParents'' episode where Timmy sneaks into Cosmo and Wanda's home in the fish bowl. With each door switch Timmy, Cosmo and Marianne (an escaped bad godchild) would change clothes. And that was the ''least'' weird detail...

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