[[quoteright:350:[[VideoGame/Stinkoman20X6 http://static.tvtropes.org/pmwiki/pub/images/stinkoman_negatory.png]]]]
[[caption-width-right:350:Level -0.1: NEGATORY!]]

Sometimes the best level is one the designers never made. Minus Worlds are areas of the game a player can reach only by [[GoodBadBugs glitching]] or [[GameShark hacking]]. These secret areas do not typically correspond to valid, intentional level data at all - it is only by dint of the game's programming that these 'junk data' manifest as a mostly playable level.

With the advent of modern 3D games, this has mostly fallen by the wayside, as random data would never create anything remotely close to a functioning 3D mesh. However, the collision detection in some 3D games is suspect; in some of them, you can actually leave the game world and explore a weird wasteland of partly implemented scenery and flickering polygons. In that case, the level is still there; the player has simply found a way to be where the game doesn't expect the player to be.

Compare and contrast with DummiedOut, which corresponds to content (and by extension, levels) that ''was'' designed to be played, but was intentionally made unaccessible in commercial releases.

Related to KillScreen. If a sprite appears in the game that was made out of similar 'junk data', see TheMissingno. If a Minus World is used for SequenceBreaking, see NotTheIntendedUse. Not related to webcomic Webcomic/{{Minus}}.

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!!Video Game Examples:

[[foldercontrol]]

[[folder: Action-Adventure Games ]]

* [[http://www.neoseeker.com/resourcelink.html?rlid=143261 The Underworld]] from ''VideoGame/TheLegendOfZeldaLinksAwakening''.
** A similar area beneath all the dungeons is also found in ''VideoGame/TheLegendOfZeldaALinkToThePast''.
*** Some of the rooms in the map are glitched duplicates of normal game rooms.
** And ''VideoGame/TheLegendOfZeldaOcarinaOfTime'' has the Underwater Underworld.
** ''VideoGame/ZeldaIITheAdventureOfLink'' had a sort of minus world. There was a glitch where in some palaces, you could jump through the ceiling and end up in a version of Parapa Palace (Level One) in the same color scheme as the palace you just left. Exiting just caused you to appear on the map where Parapa Palace was. Another was the glitch town you land in if you jump offscreen in Darunia and use the Fairy spell. Leaving town results in Link being [[{{Unwinnable}} stuck in the middle of the ocean]].
** ''[[VideoGame/TheLegendOfZeldaTwilightPrincess Twilight Princess]]'' also has a glitch underworld.

[[/folder]]

[[folder: Action Games ]]

* ''VideoGame/TheGuardianLegend'' also has a vast Minus World you can explore at your leisure but it doesn't seem to be nearly as well-known as the other examples above.
* By exploiting the [[GoodBadBugs 1.5X running speed glitch]] in ''VideoGame/ResidentEvil4'' and dropping down the ladder in the save room near where you battle El Gigante (With the merchant in it), you'll enter a weird wasteland that's stuffed to the gills with ammo, curative items, and even a few ''weapons'' to pick up (Which, other than the shotgun, doesn't even happen in normal gameplay). The room has been theorized to be everything from a DummiedOut ammo cache to an [[TheDevTeamThinksOfEverything intentional Easter Egg]] for gamers to find.

[[/folder]]

[[folder: Adventure Games ]]

* There are many interesting experiences and fights to be had if you manage to traverse beyond the boundaries of the map and can get beyond the walls of the Dimension of Death in ''VideoGame/KingsQuestMaskOfEternity''. You can go all sorts of otherwise inaccessible places in many other worlds too using cheats to teleport.

[[/folder]]

[[folder: Driving Games ]]

* Using the drive on water and speed mods for ''VideoGame/MidtownMadness 2'', once can explore areas beyond the roads of London and San Francisco. Because these areas were never meant to be explored, there are holes in the terrain, flat areas hidden from view during normal gameplay by buildings, and in the San Francisco map, part of Alcatraz and Marin can be visited using the drive on water hack.
* The city of Newcastle-upon-Tyne in ''{{Driver}}'' is shown during the credits, unfinished in many places, and can only be accessed in-game by hacking. It was apparently meant to be a playable level, but DummiedOut due to time constraints.
** Falling into the skybox in the sequel normally registers as a BottomlessPit death, but with a certain glitch, you can survive the fall and drive around in the void.
* The "underworld" in ''SanFranciscoRush'' and its sequels, which you can fall into by glitching off the track.
* The void outside the track in ''BigRigsOverTheRoadRacing''. That is, assuming that the [[ObviousBeta entire game]] doesn't qualify.
* Go far enough off the track area in ''{{Trackmania}}'' and you'll encounter in order: the background scenery with simple graphics; the edge where the skybox meets the ground; a black void beyond the skybox, or in the stadium environment you can fall off the edge of the map and land on the ''bottom'' of the spherical skybox. Going beyond the skybox will show the sun/moon as a sprite in the distance and a field of 3D clouds stretching to infinity. Interestingly, the sides and bottom of the stadium map terrain are actually modelled and textured just to ensure you wouldn't see any graphical glitches while falling off the world and hitting the bottom of the sky below. The outside of the skybox is even textured. With the right tricks using a third party replacement for the track editor, you can build tracks in this twilight zone.
* In ''VideoGame/{{Vette}}'', you could sometimes glitch through the walls and drive outside the game world, although an InvisibleWall beyond that prevents you from going into infinity like ''BigRigsOverTheRoadRacing''. Also, since the game uses DynamicLoading, you can outrun the load with the faster cars and end up in a glitch world.
* In ''GranTurismo 3'', you can break out of the track on some courses and drive around in the scenery (which of course, is not solid). If you have a fully-powered and properly-tuned Escudo you can cause the speedometer to overflow to 2147483647 mph([[PowersOfTwoMinusOne the highest 32-bit signed integer]]), crashing the game. ''GT 2'' also had a couple DummiedOut courses that could be found with a Gameshark.
** GranTurismo 2 has a drag race track inside Laguna Seca. However, if you reach the end of it, your car will jump out of the limbo, returning to the track in the Corkscrew corner.

[[/folder]]

[[folder: Fighting Games ]]

* In the Netherrealm area of ''Videogame/MortalKombatShaolinMonks'', on or around the initial stairway, it is possible to fall under the landscape while engaging in aerial maneuvers. The camera will zoom into or slightly past the ground and your character(s) will be completely hidden from view. The only indication of where you are will be a peculiar blue triangle which apparently marks your position. While sometimes it is possible to bumble your way out of this literal minus world, most of the time the only course of action is to reset.

[[/folder]]

[[folder: First-Person Shooter ]]

* ''{{Trespasser}}'' had a debug level accessible by a cheat. It contained a bunch of items, one enemy and all the weapons in the game. The in-game levels also had several blocked-off areas which contained extensive scenery, including the basics of an entire extra level; the game had been rushed to completion, and the extra level had been scrapped before completion.
* The monsters in ''VideoGame/{{Quake}}'' are not spawned to order as you progress through a level, but teleported into position from an ordinarily unreachable room that's chock full of baddies. You can fly to the room with a noclip cheat and provoke them into [[LetsYouAndHimFight massacring each other]] for kicks.
* In the ''VideoGame/{{Unreal}}'' games you can find each level's [[http://en.wikipedia.org/wiki/Skybox_(video_games) skybox]] by using a noclip cheat. If you then use the spawn cheat to put monsters into these rooms and return to the regular level the spawned beasts will appear huge, filling the sky!
** The same thing can be done in ''VideoGame/HalfLife2'', and can be helpful for ragdoll posing in GarrysMod.
* In ''VideoGame/{{Turok}}: Dinosaur Hunter'' there's a pit in the "beginner" area where you can squeeze into one of the corners when you fall in and get stuck. If you keep looking up and down repeatedly it will somehow propel you up above the clouds.
* There was a bizarre room in ''[[VideoGame/DarkForcesSaga Jedi Knight]]'' which was accessed by flying through the rafters in Morgan Katarn's house.
* There are many weird normally-inaccessible areas of ''Franchise/{{Halo}}'' levels that can nevertheless be accessed by grenade jumping, hijacking a Banshee, or other glitches, eg Assault on the Control Room, Outskirts, and Metropolis (where you can find a giant soccer ball, etc). On Assault on the Control Room, you can also glitch your way into one of the pulse generator rooms from Two Betrayals, however, the only way out is suicide.
** In the "Delta Halo" level of ''{{Halo 2}}'', it is also possible to drive a vehicle up a particular slope to gain access to the surrounding terrain and the lakebed, while falling into the lake normally results in death.
* ''VideoGame/DeusExInvisibleWar'' has an out-of-world example in Kairo. When searching for the hellfire boltthrower, the player has to reach a roof and then go in to find the item. If the player now instead goes further, there comes a point where the player can stand on top of the highest roof, look into a purple void and see all the interiors from outside. While it is impossible to go into them, one can jump on them and run around in what would logically be a wall. The music is out in this region as well. The only solution to leave this space once entered is suicide by jumping to death or not jumping from the roof at all.
** This is also similarily possible in Lower Seattle near the lofts. When jumping on the dumpster after throwing stuff on it, it should be possible to reach the roof, and look into a purple void. Unlike Kairo, there are no interiors, and jumping to death is not necessary.
* In ''VideoGame/{{Borderlands}}'' it is possible to park vehicles very close to certain cliffs, exit the vehicle and pass through the cliff, allowing the player to run around on the expansive but fairly featureless 'background' landscape. Until finding the ''actual'' edge of the world and falling for a long, long, long time to your death.
* The buggy ''MedalOfHonor (2010)'' has a huge glitch that can turn an entire level into Minus World (the floors disappear), allowing you to fall into the skybox (which is a BottomlessPit).
** ''Allied Assault'' has an empty level labeled "void", which is what its name suggests. The game autosaves here when you access the Bazooka-Med bonus mission, and when you reload, it skips to the King Tiger level.
* [[FlatWorld Jumping off the edge of the world]] in one particular level in ''DarkestOfDays'' treats you to the true nature of the level's skybox: specifically, that it's actually a picture of a stormy Midwest plain. The sedan the photographer drove to get there is plainly visible.
* ''SniperPathOfVengeance'' allows you to ''fly'' out of the map by exploiting a glitch in the jumping function. You never fall into the skybox, though - you just keep walking on the same (invisible) plane that the map was laid out on. Especially funny on the level with the helicopter.
* In ''VideoGame/{{Doom}}'' and other 2.5D shooters nocliping out of the map will cause the Hall of Mirrors effect where everything repeats.

[[/folder]]

[[folder: Miscellaneous Games ]]

* As a consequence of being notoriously buggy and incomplete, ''{{Action 52}}'' has several Minus Worlds that are encountered during normal gameplay, in many cases unavoidably.
** If you fall down a hole in Level 5 of ''Cheetahmen'', you end up in [[SecretLevel Level 9]], which is a room with a OneUp. When you exit the room, you go to Level 10, which is a garbled mess where you fall to your death.
** In the second level of ''Thrusters'', the screen starts blinking, and you can't progress any further. If you crash here, your ship scatters into a glitchy mess that can still move around. It can be avoided only with a right emulator and rom.
** The "lost levels" of ''Cheetahmen 2'', which are {{Remixed Level}}s from ''Cheetahmen 1'' where the music is all glitched, and your Cheetahman is invincible for some reason. Once you play through here, the game locks up, just like at the end of Level 4.
** The third level of Lollipops, with its [[SensoryAbuse musical mind rape]], that results from the game interpreting other game data as music.
** The last level of Ninja Assault is populated by [[TheMissingno Missingnos]], and you're stuck in limbo at the end.
** Level 8 of ''Beeps n Blips'', where the background is garbled and the level can't be completed because both the player and enemies are invincible.
* ''VideoGame/DanceDanceRevolution Extreme'' has several messed-up or DummiedOut Challenge step charts that can be found with the "Oni glitch". Here's how it works: every "Oni" course features a list of songs which are each designated a difficulty level (which determines which step-chart is played). By choosing a course right after switching from one to another, you end up with the songs from one course but the difficulty levels of the other, leading to some song\difficulty combinations that normally can't be chosen.
* In ''Winx Club'', it's possible to go through a rock in the first level and walk onto the sky; if you walk far enough into the skybox, you disappear. You can get into a (small) normally-inaccessible area as well.
** It's also possible to jump into the air and land on it as though it was solid in one section.
* Exploting a certain glitch ''VideoGame/SandcastleBuilder'' is necessary to reach the otherwise-inaccessible Minus versions of every "[=NewPix=]", and thus to find half the Discoveries. The descriptions and images of these are intentionally drawn flipped. When the player first exploits this glitch, the badge "Minus Worlds" is awarded.

[[/folder]]

[[folder: [=MMORP Gs= ]]
]
* The Arachnos Lab maps in ''CityOfVillains'' is a 3D example of this. Though most of the holes have been closed up by now, it was possible to drop through the metal mesh surfaces and explore the pipe dream like areas that extended quite far beyond the parts of the map you are normally confined within. This was an annoyance too as often NPC foes would sometimes fall through these holes, making a "defeat all" mission impossible to complete.
** There was an Explorer badge in ''City of Heroes'' which was difficult to reach through normal means, and the preferred method of picking it up was finding a particular spot in a hillside where you could manage to slip through the mesh, then fly ''under'' the world through grey mist and weird planes to the badge's approximate location.
* ''VideoGame/WorldOfWarcraft'' has some unfinished zones as well as places where it's possible to fall outside the game world. Most of such places have been made inaccessible though. Examples include a village of dancing trolls (near Darkshore, if memory serves), Mount Hyjal, the Ironforge Airfield (you actually fly above it if you take the gryphon from anywhere within southern Eastern Kingdoms to the northern Eastern Kingdoms, but actually having time to see what's going on is more fun. Hint: Dwarves killing ice trolls. Fun!), and an area under Stormwind that was basically just unfinished texture patches. You'll usually get teleported out of these areas by a GM and sanctioned for entering them, which has led many players to question Blizzard's decision to still leave areas such as the dancing troll village 'accessible' (to be fair, Mount Hyjal shouldn't have been accessible without using exploits or wall climbing).
** The ''Cataclysm'' expansion finally made accessible all of the formerly closed zones in the old world, including Hyjal, the Dancing Troll Village, and the Ironforge Airfield.
** Other notable areas include a prototype of Outland, the Emerald Dream, Karazhan catacombs, fake Zul'Gurub, an untextured prototype of Zin-Azshari, fake Northrend, sealed-off pieces of Silvermoon, GM Island and Developers' Island. Most of those can only be accessed via third-party tools.
** There are also myriad ways to "fall through the world." placing you in a bizarre freefall where you can run around under the continent, but not cast anything or recall back to the real world. Sometimes the game will detect this glitch and drop you to a set area that seems to be the official graveyard for Minus World (For the alliance this is westfall's deadmines graveyard).
*** One of the weirdest was the "Dwarf Farm Tunnel" in Wetlands. Originally, there was a Dwarf farm on the northern face of the mountain containing Ironforge. Up the road from it was a tunnel entrance that, when entered, would cause you to fall through the world and into an area of blank sky. It was the same as falling off of Outland. You would fall until you eventually died. If you were stupid enough to fall in as a ghost, your only hope was to pray that the weird circular movement you moved in would somehow launch you back up onto land. Of course it was a little difficult to get to this tunnel, and as of Cataclysm, it's sealed off.
*** And now with the launch of Cataclysm allowing flight in old world, if you do manage to glitch beneath the terrain you can fly around safely down there. Dangers abound, however. Flying into a "No flight allowed" region will dismount you to your death, and water seems to extend infinitely down.
* The MMO ''AsheronsCall'' takes place on an island surrounded by [[InvisibleWall impassible water]]. The walls in some places would come together at the angles, allowing you to pass between them and explore the normally inaccessible area of the game world.

[[/folder]]

[[folder: Platformers ]]

* The original minus world from ''VideoGame/SuperMarioBros'' is the TropeNamer. The player can reach it by entering a pipe in the first WarpZone after walking through a wall (thus, before the Warp Zone message appears). It consisted of the level design of the WaterLevel 2-2 repeating over and over. The glitch causes the game to think the player is in the world 4 warp zone, which has only one pipe instead of three; the other two destinations are set to world 36, as tile #36 is a blank space (so nothing would appear over the blank spaces where the other two pipes would be). On the HUD, this shows up as "World [blank space]-1", hence the name "world -1".
** There are also [[http://web.archive.org/web/20091126114220/http://www.trsrockin.com/smb_glitches.html many, many Game Genie codes]] for ''Super Mario Bros.'' that can allow you to play seemingly random levels taken from other data in the ROM (though many of these aren't actually playable, and several more still aren't beatable). The Super Mario Bros level format is such that nearly any random string of bytes can form a valid (but likely Unwinnable) level of some sort, so a huge number of "levels" can be played by making the game load other random data from the ROM as level data.
** The UpdatedRerelease for the Famicom Disk System ([[NoExportForYou never released outside of Japan]]) replaced the Minus World with [[http://www.youtube.com/watch?v=xB2i-QOsBpw a different series of levels]]. World -1 uses the design of 1-3 with underwater tiles and different enemies, world -2 is identical to 7-3, and world -3 is 4-4 with underground tiles and underwater enemies. There is no world -4.
** ''VideoGame/SuperMarioBros3'' also contained several unfinished DummiedOut levels, including a rising and sinking ice level. One of these was a copy of World 7-8 with a TheMissingno enemy. There's also World 0, which is complete garbage.
** Several people have done romhacks to place a flag and castle at the end of 8-4, right before the Bowser fight. [[http://www.youtube.com/watch?v=D570jB_1sHs The result is even worse than the minus worlds]].
** ''VideoGame/SuperMarioWorld'' has numerous iterations (about 150 or so) of a "TEST" level embedded in the ROM data, with a sprite not seen elsewhere in the game.
** World 9 in ''The Lost Levels'' is one big reference to the FDS minus world, and it also loops endlessly.
** ''Mario Forever'', a PC remake, starts up with a world similar to 1-2 with save states. If you go through that and right, it allows you to pick a mushroom, flower, beetroot, or the green bouncy thing right off the bat (at cost of 1 and 2 lives respectively), and if you go even further, you can find a pipe that leads to the world named "Human Labratory World" with enemies taking a strangely human shape.
*** Go ever further, you can find the lost map of Mario Forever (very big, I say) and a world named "Funny Tanks"!
** ''Super Paper Mario'' references this by giving one way of calling the [[PunnyName Underwhere]] (the game's name for Hell) "World -1". [[spoiler: (Actually, it's World 7-1 in this game)]]
* The ''Franchise/{{Metroid}}'' games have this: [[http://www.youtube.com/watch?v=IMEnsIhtpsY&feature=related the original]] ''VideoGame/{{Metroid|1}}'', [[http://www.youtube.com/watch?v=UxBWsaxV5cs its]] [[VideoGame/MetroidIIReturnOfSamus Game Boy sequel]], and the ''[[VideoGame/MetroidPrime Prime]]'' games, generally called "secret worlds". In the NES VideoGame/{{Metroid|1}}, the secret worlds could accessed by getting yourself stuck in doors, were many times larger than 'real' map, and inspired vast inflorescences of conspiracy theory before it was proven they were caused by the game reading its own code as level data. They are also abused for {{Speed Run}}s.
* In ''VideoGame/Sonic3AndKnuckles'', [[http://www.youtube.com/watch?v=m1atT6qrRLY you can glitch your way]] into Knuckles' part of Lava Reef as Hyper Sonic, where you can trigger further glitches, such as ending up back in Act 1 with Act 2's palette (like SMB's minus world, there's no escape other than resetting), and turning Sonic into [[TheMissingno Blue Knuckles]]. These glitches can also be performed in other acts with certain cheat codes enabled.
** ''VideoGame/SonicAdventure2 Battle'' had a gap in the invisible wall in the Chao Garden, where, by somersaulting or bouncing, you could leave the garden area and enter a big black void where the Chao Garden itself appears as a blue cylinder. Getting back inside may or may not be possible, but you can still exit the garden from the pause screen.
** Again in ''SonicAdventure2'', by performing glitches in the Crazy Gadget and White Jungle levels relating to the Chao Key, it is possible for Sonic/Shadow to access the Test Level. The HD Re-release does not fix the glitch, and in fact makes it even easier to perform, to the extent where [[GameBreakingBug Eggman can access the test level by simply collecting a Chao key in his final stage]].
* In ''VideoGame/MegaMan2'', it was possible to trick the boss door for Air Man's stage by standing on a rising Item 1 placed next to it while fighting the boss. The boss door would open from the inside and the screen would scroll over beyond the boss--to the second level of Wily's fortress, using the Airman stage tileset! The boss doesn't load.
** This can also be done in Heatman's stage, which takes you to the first level of Wily's fortress with the Heatman's stage tileset.
*** [[http://www.youtube.com/watch?v=F-zTWG5jJHo Also on Woodman's stage]]
* ''Franchise/{{Castlevania}}'' series examples: ''[[VideoGame/CastlevaniaSymphonyOfTheNight Symphony of the Night]]'', ''[[VideoGame/CastlevaniaAriaOfSorrow Aria of Sorrow]]'' and ''[[VideoGame/CastlevaniaDawnOfSorrow Dawn of Sorrow]]'' have their own Minus Areas outside of the Chaotic Realm:
** ''Symphony'' lets Alucard abuse his familiar spells to warp through walls into areas outside the normal castle map. As the game covers two different castles, the max percentage of map coverage ''should'' be 200%, but glitch abuse has managed to [[http://www.execulink.com/~maggi/wbw/ more than double]] this amount.
** ''Aria'' allowed Soma to use the Devil and Kali souls to clip through certain low-hanging platforms to reach areas of the castle out of bounds, which would cause him to warp repeatedly if he did it correctly, until the game "clips" him into a stable place.
*** If you do this trick right, you could do this to clip into the Chaotic Realm and beat the game as soon as you get the "walk under water" soul.
*** Fun Fact: Doing this correctly in a NewGamePlus with the map fully explored increases the map reveal to up to 100.3%.
** ''Dawn'' featured the Succubus glitch, which could also put dummy and glitched items into Soma's pockets, besides the out-of-bounds travelling it allowed.
** The staircase glitch in ''VideoGame/CastlevaniaIIIDraculasCurse'''s Clock Tower. A similar glitch can be performed in the Swamp area.
* Press "0" on the starting screen of ''[[PlatformHell Syobon Action]]'', I dare you!
** It is wholly possible to beat the Syobon action in this mode, in two ways. You can either beat every randomized level like normal or successfully pick up the sword item that normally only appears in the castle without dying to get the ending credits to show up. ''Syobon Action 2'', on the other hand, does not seem possible to beat without the sword in this mode.
* Indie platformer ''{{Eversion}}'' is the absolute epitome of this trope with TEN minus worlds. The normally accessible levels are worlds 1 through 8. World 9 is a black world where the enemies look like you and everything else except you is invisible. And then there are worlds 0 and -1, which are completely unplayable (The computer usually freezes if you try to load them) and consist of two different sets of glitched graphics. 0 has a black background and -1 has a purple background. Worlds -2 through -8 are versions of worlds 7 though 1 where everything is invisible except you and there are no enemies or gems.
* ''VideoGame/SuperMario64'' has the Black Room of Death, a small-but-nonetheless-too-large-to-exist-where-it-does room inside the front wall of the castle. It's actually the darkness behind the castle door, where the game transitions to the next area. Via a glitch, you can fall into the black space, and when you go through the door, you end up in the other black void behind the door inside the castle. From this side, you can actually glitch through the section of wall next to the door and end up back in the castle.
* The first part of the original ''VideoGame/DukeNukem'' for DOS (again, not the 3D versions) had a glitchy area that you fell into if you were missing some file(s) containing the later level data.
* In the NES [[strike: game]] piece of unlicensed garbage ''Silent Assault'', if you jump off the top of the screen in Level 2, you end up in Level 3.
* OlderThanTheNES ''Mountain King'' for the 2600 has a glitch world that can be accessed by a very precise jump at the top of the level. Toggling the console switches will mess things up even further.
* ''[[VideoGame/MeatBoy Super Meat Boy]]'' had these implemented in the game intentionally - you could get to a glitched screen and an extra level [[spoiler: in each chapter, for seven in total, by rescuing Bandage Girl when she randomly had graphic glitches and weird beeping. Once you made it to each chapter's minus world, you could go back by moving to the left of each chapter's first level in the light world.]]
* It appears the Glitch Gremlin made a deal with the developers of the ''VideoGame/MegaMan'' ShoddyKnockoffProduct ''[[http://www.youtube.com/watch?v=XFNP5MqeSKU Rocman X]]'' (aka ''Thunder Blaster Man''), as some of the levels can get totally messed up (eg scrambled graphics and walking on BottomlessPits) and nearly unplayable.
* Parodied in ''VideoGame/Stinkoman20X6''. "Level -0" (which the title character gets to by blowing a hole in the middle of a normally impassable wall) features a random assortment of enemies and platforms, many of which don't behave quite normally.
* In ''VideoGame/{{Bugdom}}'', if you jumped against a wall at the right angle, you'd end up in a landscape similar to the one you'd just left, but totally empty of enemies and items. If you kept walking, the landscaping would eventually give way to a white void.
* In the DOS version of ''VideoGame/PrinceOfPersia1'', one can access one with the help of cheat codes.[[note]]The command line parameter for activating cheats is either MAKINIT or IMPROVED, depending on version.[[/note]] The prince must die and be resurrected right next to a wall on the right side. A good place to try this on is the right edge of the 3rd level. Just climb up, go right until you see the wall and jump down, then press "R" to resurrect.
* The first three ''VideoGame/CommanderKeen'' games have many of these. If you use the no clipping cheat in the world map, wander off the edge of the screen and continually hit the key for entering normal levels, you will sometimes enter a minus level. These include the levels shown on the title screen, which don't actually correspond to any actually in the game, and levels composed of random gibberish.
* ''VideoGame/{{Iji}}'' has two peculiar ''intentional'' examples, overlapping (slightly) with TheMissingno: First, if you use the Null Driver, a ''very'' well-hidden weapon, the game begins to glitch severely: you wind up with full stats, and various pieces of the scenery 'glitch up'. Repeated use will eventually 'glitch' the levels to a point where you can no longer progress through the game. If you use it against the final boss, however... [[spoiler: he mentions that it will drive you insane... and you find yourself in a variant of Sector 1 with no enemies, no items beyond a devquote list, ''and no exit.'']]

[[/folder]]

[[folder: Puzzle Games ]]

* ''VideoGame/{{Portal}}'': the final cutscene takes the camera [[spoiler:through a system of pipes leading to a room with the cake and the CompanionCube]]. The level geometry for this is part of the final level, and it's possible, ''without noclipping'', to reach this room AND return to the main level area with the cube, by way of a glitch where firing both portals at some surfaces would cause the second portal to bounce around to the other side of the wall, letting you glitch through the wall and out of the map. Along with the bizarre fact that all of the external walls of the map appear to conduct portals, this lets you reach the room and carry [[spoiler:your beloved CompanionCube]] [[ShaggyDogStory all the way as far as the grille just before the final boss]].
* ''VideoGame/{{Portal}}: The Flash Version'': using the console cheat "gotolevel X" where X is any number but 1-42 [[spoiler:(here level 41 is cake and 42 is the credits)]], weird things happen. Level 0, marked with a "?" mark, is a level that is nothing but surfaces, with the wall in the background saying "zomg owned!", and any other level makes you go through the level in which you typed in the command over and over and over again.

[[/folder]]

[[folder: Roguelikes ]]

* ''TalesOfMajEyal'' had a glitch with the farportal in Yiilkgur when it was first added, which transports you to a randomly generated dungeon; there would be an up-stairway on the first level, which would lead you to level 0. You could continue ascending into the negatives if you liked; enemies generated in these levels would be extremely weak. In an unrelated glitch in the same version, dying in certain areas and then resurrecting could cause the game to crash ''at best''; the rest of the time it would corrupt the graphics and make the game UnwinnableByMistake. This included one arena containing a HopelessBossFight that must be fought to progress. [[GameBreakingBug Oops]].

[[/folder]]

[[folder: Role-Playing Games ]]

* ''VideoGame/DotHackGU'' has a glitch in one of Mac Anu's walls which allows Haseo to ride his Steam Bike ''through the wall'' and exploring the lake area around Mac Anu.
* In ''{{Pokemon}} Red/Blue/Yellow'', [[http://bulbapedia.bulbagarden.net/wiki/Glitch_City Glitch City]] is the FanNickname for any of several areas consisting of a jumbled assortment of tiles with highly glitchy behavior, where some ''very'' unusual wild Pokémon can be encountered. Getting to Glitch City requires using a save trick to walk out of Safari Zone (impossible in later generations) and traveling to another area (preferably the Cinnabar Island coast) before reaching the limit of 500 steps.
** The [[http://bulbapedia.bulbagarden.net/wiki/Mystery_zone "Mystery Zone"]] is another example, which occurs when one walks into an inaccessible area through the "Tweaking Glitch" or cheating in ''[[VideoGame/PokemonDiamondAndPearl Diamond/Pearl]]''.
* ''VideoGame/{{Fallout 2}}'' You can access the unimplemented Den area by pressing 3 when choosing your destination on the town map. You can whack Anna's double, get a Shovel from Smitty's evil twin's shack, and in case you're wondering, if you kill everyone here no one in the "real" Den will care. It's important to note that this does not occur on either the Restoration project or the MegaMod, as they use the unused map for the Den residential area.
** Better (or worse?) yet, there is an [[DummiedOut unfinished]] interior area for the [[ChurchOfHappyology Hubologists']] faulty spacecraft, missing textures and likewise accessible from the San Francisco town map.
* ''VideoGame/{{Fallout 3}}'': Residents of Megaton could periodically disappear to an exterior cell that wasn't connected to the rest of the overland world, but could be reached through console codes. It was also possible to port into the in-game location where the opening cinematic was shot, proving that it was done purely in-engine; this was also disconnected from the rest of the city.
** Megaton also has an untextured alternate version of My Megaton House.
** Vault 87 has a "Requires Key" door for which the key is non-existent, but which can be opened with console codes in the PC version. This leads to the main entrance hall, and the characteristic gear-shaped entry door leads to [[VoidBetweenTheWorlds a blank brown void]]. This is actually the door the Enclave enters through when they capture you; you can only guess [[TookAShortcut how they got through the lethal radiation]].
** Vault 92 also has an area inaccessible outside of hacking, consisting of a room blocked off by a jammed door containing some minor loot, and the tunnel from the Overseer's Office, but which can't be opened from that side either. You can also glitch into this area from the Overseer side, but if that happens in the console version your game will be rendered {{unwinnable}}.
** In ''VideoGame/FalloutNewVegas'', if you forgive Benny in the Presidential Suite of the Tops Casino, he escapes through a locked elevator behind his room. If you kill him before he escapes, a programming oversight causes the elevator to remain unlocked, allowing you to enter the sub-basement of the casino and an otherwise inaccessable area of Vault 21, which contains locked doors leading to nothingness, similar to Vault 87.
** In both games, the borders of the world map are defined by {{invisible wall}}s, but there are a few gaps where you can get out into the endless outer wastes.
** ''New Vegas'' also has a DummiedOut alternate version of Freeside which has the Old Mormom Fort in the same map space, but no working exits in or out. Sometimes [=NPCs=] will end up here, which lets you access the area by console command.
*** Similarly, after completing the quest "Volare!", the Nellis Hangar will be replaced with a new version of the cell containing the B-29, and sometimes Loyal will end up trapped in the old cell, causing Raul's companion quest to be LostForever outside of console commands.
* There is no "death" in ''UltimaVII''. Creatures were removed from the game field proper and replace with a corpse/container item. The "dead" creature was taken to an area known as the land of the dead. Legitimately, it was not possible to visit there, but hex hacking of the save game could temporarily take the Avatar there.
** There is also Alagnar's other house, which could be seen through his crystal ball [[spoiler:when viewing his death at the hands of Elizabeth and Abraham]]. It is hidden in a mountain to the far southeast.
** Likewise, ''UltimaVII'' part two has numerous secret areas hidden under mountains, including cut scenes, another Land Of The Dead, and a copy of the starting area with a staircase to a mountaintop.
* On older computers (like C64 old) ''UltimaIV'' came on four floppy disks which had to be swapped during gameplay to access different parts of the world. By placing the wrong disk in the drive, for example inserting the dungeon disk when the game called for the city disk, the PC would end up in a glitchy-but-navigable world devoid of foes but fairly laden with treasure chests.
* As mentioned on the DummiedOut page, the original ''BreathOfFire'' has several Minus World-type or unfinished areas that can be accessed with the Dr. Warp developers tool, obtained by hacking the ROM.
* The super loot bags in ''VideoGame/{{Wasteland}}'' (themselves a GoodBadBug) can cause weird map errors. Exits may deposit you in the wrong area: for instance, leaving Fat Freddy's once led into Base Cochise. Another time, all the slot machines one at a time turned into cheap doctor's offices. There seems to be no pattern to these bugs and some leave the game unplayable. Mess around at your own risk.
* In ''VideoGame/TheElderScrollsIVOblivion'', there are some mountains separating Cyrodiil from Morrowind, but by riding a horse up the mountain near Hero Hill and following a 'path' of sorts, it is possible to reach the top and go down the other side. What awaits you on the other side? Not Morrowind (although mods can allow you to go from Oblivion to Morrowind), but a massive randomly generated landscape. What lies beyond the mountain will always be different for everybody. The map will eventually end and dropping off the edge of the map will take you to even more landscape to explore.
** Both ''Oblivion'' and ''Morrowind'' had DummiedOut "test" cells that can be accessed by using the command console in the PC version (accessed using the tilde or ~ key). For example, in Oblivion if you enter the command: coc"Hawkhaven" (with quotes), you get taken to a test "town" of sorts, with a vendor that has [[GameBreaker 65536 gold]], among other odd things.
* The original ''VideoGame/{{Fable|I}}'' (i.e. before The Lost Chapters fixed it) had a glitch involving the shovel item that allowed you to reverse through walls and the like. Using the glitch to go off the edge of the map in certain areas (e.g. through the back of the tent in the trader camp before Oakvale) allowed access to incomplete map areas never utilised in-game. These areas actually look more like [[SceneryPorn real landscape]] than the utilised game areas do due to the lack of artificial boundaries, but since they were never meant to be navigated, one has to get through them by very glitchy movement.
* ''[[TwoWorlds Two Worlds 2]]'' has an entire large island that's supposed to be inaccessible, but there is one spot in the cliffs and invisible walls where it's possible to slip through and explore the mostly barren landscape, including doing some SequenceBreaking in areas you're only supposed to travel to later in the game.
* ''Panzer Dragoon Saga'' has a few but one notable one is in the town of Zoah. Near Paet's machine there is a house with a Coolia in front of it. If the player walks onto the roof and into the wall they will fall below the town. Walking in most directions results in the usual leaving town option to appear but if the player walks towards the Holy District they can keep running for a long time and eventually encounter a random placing of floor textures.

[[/folder]]

[[folder: Shoot Em Ups ]]

* Area 0 in ''{{Zanac}}'', which has a featureless gray background, uses Area 12's music, loops indefinitely, and lacks any weapon powerups.
* ''RType'': If you get killed just as your shot kills the first boss, when you respawn, the "stage clear" music will play and your ship will be on auto-pilot, causing you to be killed again. Then on your next life, although you're still in Stage 1, the game will switch to Stage 2's graphics!

[[/folder]]

[[folder: Sports Games ]]

* Tony Hawk's Underground has the Slam City Jam level, where you can fall through a section of the crowd and go outside into a very underdeveloped beta area of the Vancouver level. This part was only meant to be background scenery, but nevertheless has a fully skateable ramp in it, and bizarrely has 2D cars moving across the road. You can go back in through the normal entrance, although you have to repeat the trick if you want to go out again. The reason for this is that the game designers originally wanted the two levels to be one large level, and started doing so, but the level space wasn't available to finish it. They blocked off the exits but forgot to do so for this one small area. It wasn't until Project 8, several games later, that they managed to make a free-roaming level like this.

[[/folder]]

[[folder: Wide Open Sandbox ]]

* ''VideoGame/GrandTheftAuto [[VideoGame/GrandTheftAutoIII III]]'' has the "Liberty City Underworld", a small area with buildings where the opening cinematic takes place.
** Accessible through the use of the "Dodo," a plane that, as the name implies, had its wings cut-off after being confiscated from a drug-runner. It had just enough wing area left such that it could make short hops (the game's physics engine treated this as if it were a car going off a ramp in a really weird way) and a particularly skilled player might be able to successfully "fly" it to the Underworld.
* ''VideoGame/GrandTheftAutoViceCity'' has a glitch where you could use a helicopter to fly under Diaz's mansion (easily done once you take over the mansion and collect enough hidden packages to unlock the helicopter there) and fly beneath the sea and land. Some {{Easter Egg}}s are more easy to find this way.
** There was also a glitch involving driving a golfcart into/inside the mall. If you could get it through the entrance, the mall turned into a weird Blue Negative World.
* In ''VideoGame/GrandTheftAutoSanAndreas'', there was a mission where you had to fly on a jet to Liberty City, which was really just a small area situated on the northwest corner of the map, so high up physically that there's normally no way to get there without the mission triggering it. However, there are several methods that one can use (either with glitching or by using a Game Shark) to get there. You can even walk around in parts of the area which you never use in the mission, but are there anyway for the cutscene - just be careful, because it was never intended for use beyond the one mission, and most of the street outside isn't actually there. Unless you have a jetpack with you, coupled with the unlimited height Game Shark code, you'll fall through and end up out in the middle of the ocean back in San Andreas.
** ''San Andreas'' also had a whole weird, trippy section of the game world reachable by using the jetpack in a particular store, or during a sneaking-related glitch in some indoor missions. Flying around this part of the world with the jetpack, one could find things such as corridors and doors floating in the void with people walking across them, various indoor spaces and some buildings. The game uses parts of this world for the indoor missions, but not everything is used, and what isn't is apparently [[DummiedOut left there with no purpose]].
* In ''VideoGame/RedDeadRedemption'', you can either end up inside a building (by disembarking a stagecoach parked right up against the building) or get under the map by crouch-walking into the space between a potted plant and a corner in the Mexican General's mansion. There's nothing to really SEE there, except the lack of internal textures, but it's enormously advantageous since the walls (and floor) is only solid from the outside. That means you can shoot from inside the map, but enemies can't shoot back... unless they bring dynamite, that is.
* The [[http://www.minecraftwiki.net/wiki/Far_Lands Far Lands]] of ''{{Minecraft}}'', the result of going far, ''far'' away from the world's center. It would take 800+ hours of walking to reach them without cheating, and things get ''strange'' when you arrive. WordOfGod is that while it's possible to fix the strangeness of the Far Lands, Notch likes the idea of the world turning into an EldritchLocation at the extreme edges. It is mostly removed in version Beta 1.8, although there are still some strange glitches.
** Additionally, there is [[VoidBetweenTheWorlds The Void]]. It is an area of complete nothingness that stretches on for infinity, and can be accessed by either going below the bottom boundaries of the maps. It is completely black and has a starry particle effect strewn throughout it. You can only reliably access it in creative mode, which allows you to destroy bedrock, or with a map editor's aid. You will take damage at 4 hearts per second, leading to a quick death and respawn. It's also possible to access this deadly area via a bug in the Survival multiplayer mode, in which stepping on glitched blocks will cause a player to fall in.

!!Non-Video Game Examples
[[/folder]]

[[folder: Anime And Manga ]]

* The second season of ''Anime/YuGiOh5Ds'' has a miniarc called "Minus World." Interestingly enough, the first episode of the four-episode arc had barely ended before the fandom was joking that it took place in Hyrule. Given that the series is a gaming anime with references elsewhere to ''VideoGame/FinalFantasyVI'' and ''StreetFighter'' (and other series in the same franchise providing huge {{Shout Out}}s to ''IllusionOfGaia'', 1990s virtual-reality gaming that may further have been a nod to a DummiedOut ''FinalFantasy'' boss, and ''VideoGame/DanceDanceRevolution'', among others), it would be interesting to know if the "Minus World" name is only a result of the time-changing staffs used in that dimension . . . or if it's another nod to the gamers in fandom.
* The original Net Slum in the ''[[Franchise/DotHack .hack]]'' series is basically a huge, Root Town-sized minus world. The admins don't want to acknowledge it is there and basically want to keep it DummiedOut, but alas, our intrepid heroes manage to get there anyway. It became some sort of a hacker's as well as game enthusiast's haven since a lot of unused game sprites and data are there. However, during the events of Quarantine, the Net Slum became an alternate Omega Server Root Town [[spoiler: after Morganna's corruption on The World R:1 made the original Root Town of Omega Server Lia Fail so unstable it wouldn't hold out]]. As such, the Net Slum is inhabited solely by {{TheMissingno}}s, usually known as Wandering [=AIs=], some of which wanders outside and get themselves deleted by the Admins. In the non-canon .hack//XXXX, Net Slum becomes an official Root Town. The de facto "leader" of this place? The enigmatic PlayfulHacker Helba.
** On the other hand, the Net Slum Tartarga in ''.hack//GU'' is less of a Minus World and more of an illegal server.
* Similar to the Franchise/DotHack {{Metaverse}} example above, ''DennouCoil'' has Obsolete Space, a creepy a DarkWorld GhostTown version of reality with floating 2D walls that extends beyond cyberspace.

[[/folder]]

[[folder: Film ]]

* ''Film/{{Tron}}''. The heroes first escape the game grid into Minus World (and then the rest of mainframe memory) through a hole in the confining walls.
** They do it again in the sequel, ''Film/TronLegacy'', and the vehicle they use to navigate through that part of the system uses knobby tires, presumably to prevent clipping.
* In ''Film/TheMatrix'' films, the Trainman's domain appears to be one of these.
* In ''Film/TheThirteenthFloor'', these can be reached by ignoring a few random roadsigns.

[[/folder]]

[[folder: Radio ]]

* The FiresignTheatre album ''The Pink Hotel Burns Down'' is about a video game player who goes off the map.

[[/folder]]

[[folder: Web Animation ]]

* The ''SuperMarioBros'' glitch, and repetitive world therein, was a plot point in the fan-made Mario/Sonic crossover flash series ''SuperMarioBrosZ'' by Alvin-Earthworm. The pipe to Minus World was discovered by literally going through a wall, albeit in a much less subtle (but still more plausible) manner. An antique stopwatch belonging to the grandfather of Professor Kolorado (from ''Paper Mario 64'') inadvertently dissipated the "negativity," allowing those trapped in the Minus World to escape.

[[/folder]]

[[folder: Web Original ]]

* [[Wiki/SCPFoundation SCP]]-[[http://www.scp-wiki.net/scp-1165 1165]] is officially called "Minus Level," and features a real life version of ''Pokemon's'' Glitch City. It's safe to travel into with no risk of getting lost beyond just losing your way. However, at some random point beyond 100km, there's a risk of getting sent into an infinite free-fall, with no ground to stop you, even after years of falling at terminal velocity, possibly used to match someone crashing in a video game Minus World. The four points where someone has "crashed" and was sent into free-fall were at 103km (manned helicopter), 113.4km (UAV, still transmitting with SCP Foundation via radio signals), 128km (one team of 4 D-class), and 201km (second team of 4 D-class).

[[/folder]]

[[folder: Western Animation ]]

* This concept was used in an episode of ''WesternAnimation/DannyPhantom'' where the main characters all played a game called "VideoGame/{{Doom}}ed", the usual cartoon mix between a FPS and MMORPG (whose prize was apparently access to the Internet), which had 'Level Zero', a glitch area with "''one way in, no way out''". [[spoiler: They trap Technus in there, though he later escapes when the game is deleted.]]

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