Minus World: Difference between revisions

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{{world infobox
{{world infobox
|image=[[File:SMB Minus World Intro Card.png]]
|image=[[File:SMB Minus World Intro Card.png]]
|appears_in=''[[Super Mario Bros.]]''
|game=''[[Super Mario Bros.]]''
|levels=Alternates
|levels=Alternates
|before=<<
|before=<<
|after=>>
|after=>>
}}
}}
The '''Minus World''' is a [[glitch]] level found in ''[[Super Mario Bros.]]'' It is an underwater [[level]] exactly like [[World 7-2 (Super Mario Bros.)|World 7-2]] in geography and enemy locations that cannot be finished due to the pipe at the end being glitched and taking the player back to the start, meaning that once there, [[Mario]] or [[Luigi]] is [[Unwinnable state|doomed]] to lose all of his lives by either running out of time or being defeated by the enemies. The glitch got its name from fans because the world-level screen displays as '''World -1'''. This is because of a glitch in the panels displaying the numbers. The Minus World is actually '''World 36-1''', but the game displays a blank graphic for the number 36, so all the player can see is the -1.<ref name=world36>[http://www.transmissionzero.co.uk/computing/mario-minus-world/ Minus World] Accessed 2009-01-04 "The 'Minus World' isn't a secret bonus level, and in fact isn't really numbered "−1" at all. The level is actually numbered "36–1", but the number "36" happens to be represented by a blank tile in the game. This gives the impression that the screen reads 'World −1'."</ref>
The '''Minus World''' is a [[glitch]] level found in ''[[Super Mario Bros.]]'' It is an underwater [[level]] exactly like [[World 7-2 (Super Mario Bros.)|World 7-2]] in geography and enemy locations that cannot be finished due to the pipe at the end being glitched and taking the player back to the start, meaning that once the player is there, it is [[Unwinnable state|impossible to leave]] without getting a [[Game Over]] or resetting. The glitch was given its name by fans because the world-level screen displays as '''World -1'''. This is because of a glitch in the panels displaying the numbers. The Minus World is actually '''World 36-1''', but the game displays a blank graphic for the number 36, so all the player can see is the -1.<ref name=world36>[http://www.transmissionzero.co.uk/computing/mario-minus-world/ Minus World] Accessed 2009-01-04 "The 'Minus World' isn't a secret bonus level, and in fact isn't really numbered "−1" at all. The level is actually numbered "36–1", but the number "36" happens to be represented by a blank tile in the game. This gives the impression that the screen reads 'World −1'."</ref>
 
This glitch was featured in the 100th issue of ''[[Nintendo Power]]''.<ref>[https://datassette.nyc3.cdn.digitaloceanspaces.com/revistas/nintendo_power_100_-_setembro_1997.pdf Nintendo Power (Issue 100) p. 68]</ref>


The glitch was first described in the [[Nintendo Power issue 3|3rd issue]] of ''[[Nintendo Power]]'',<ref>''[[Nintendo Power]]'' Volume 3, page 55.</ref> and was later featured in its 100th issue.<ref>''[[Nintendo Power]]'' Volume 100, page 68.</ref>
==Method==
==Method==
[[File:SMB Minus World.png|thumb|left|A screenshot of the level]]
[[File:SMB Minus World.png|thumb|left|A screenshot of the level]]
The player can get to the Minus World by going to [[World 1-2 (Super Mario Bros.)|World 1-2]] and standing on the [[Warp Pipe|pipe]] that leads to the [[Goal Pole]] at the end of the level. Then, they should move to the far left end of the pipe, then [[crouch|duck]] while facing left. While ducking, the player should [[jump]]. While in the air, the player should move right, so that when Mario is about to come back down, he should be just under the ceiling next within this moment. It may take the player several tries, for Mario must land in an exact spot on the pipe in order to travel through it.<ref>[https://youtu.be/TqtSXD3JKcE A YouTube video showing how to perform the glitch while ducking]</ref> If this is done correctly, he will automatically move through the pipe (without the screen moving) and then through the wall and into the warp room. If not even one pixel of the pipe is showing, Mario will be trapped until the timer runs out.<ref>[http://www.youtube.com/watch?v=ptsqEvqmuz0 A video of the glitch performed, on YouTube]{{dead link}}</ref>
The player can get to the Minus World by going to [[World 1-2 (Super Mario Bros.)|World 1-2]] and standing on the [[Warp Pipe|pipe]] that leads to the [[Goal Pole]] at the end of the level. Then, they should move to the far left end of the pipe, then [[crouch|duck]] while facing left. While ducking, the player should [[jump]]. While in the air, the player should move right, so that when [[Mario]] (or [[Luigi]]) is about to come back down, he should be just under the ceiling next within this moment. It may take the player several tries, for Mario must land in an exact spot on the pipe in order to travel through it.<ref>[https://youtu.be/TqtSXD3JKcE A YouTube video showing how to perform the glitch while ducking]</ref> If this is done correctly, he will automatically move through the pipe (without the screen moving) and then through the wall and into the warp room. If not even one pixel of the pipe is showing, Mario will be trapped until the timer runs out.<ref>[http://www.youtube.com/watch?v=ptsqEvqmuz0 A video of the glitch performed, on YouTube]</ref>{{dead link}}


Another method of reaching the Minus World involves Mario breaking two blocks on the ceiling, leaving the one on the far right. He should move to the far left end of the pipe and jump to the right. He does not have to duck as he can try to hit the bottom left portion of the block (without actually destroying the block). This should glitch the game, allowing Mario to get through the pipe and wall, but doing it this way is potentially more difficult and time-intensive.<ref>[http://www.youtube.com/watch?v=rgohnDkyTZM A video of the glitch performed (without ducking), on YouTube]</ref>
Another method of reaching the Minus World involves Mario breaking two blocks on the ceiling, leaving the one on the far right. He should move to the far left end of the pipe and jump to the right. He does not have to duck as he can try to hit the bottom left portion of the block (without actually destroying the block). This should glitch the game, allowing Mario to get through the pipe and wall, but doing it this way is potentially more difficult and time-intensive.<ref>[https://youtu.be/AuayHkWuH1E?t=44 A video of the glitch performed (without ducking), on YouTube]</ref>


If everything is done properly, Mario will see the three pipes in front of him from the [[Warp Zone]]. If he enters the pipe to the far left or far right, he will find himself in the Minus World. If he goes in the pipe in the middle, it will bring him to [[World 5-1 (Super Mario Bros.)|World 5-1]]. (This has a practical use, however, as it advances the player further than the normal Warp Zone would, although it is not used in speedruns as it skips past [[World 4-2 (Super Mario Bros.)|World 4-2]], which has a Warp Zone leading to [[World 8 (Super Mario Bros.)|World 8]].) If the player makes the brick wall on the far right visible (where the ''"Welcome to Warp Zone!"'' message appears), the Warp Zone will be correctly loaded and the glitch will end.
If everything is done properly, Mario will see the three pipes in front of him from the [[Warp Zone]]. If he enters the pipe to the far left or far right, he will find himself in the Minus World. If he goes in the pipe in the middle, it will bring him to [[World 5-1 (Super Mario Bros.)|World 5-1]]. (This has a practical use, however, as it advances the player further than the normal Warp Zone would, although it is not used in speedruns as it skips past [[World 4-2 (Super Mario Bros.)|World 4-2]], which has a Warp Zone leading to [[World 8 (Super Mario Bros.)|World 8]].) If the player makes the brick wall on the far right visible (where the ''"Welcome to Warp Zone!"'' message appears), the Warp Zone will be correctly loaded and the glitch will end.
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==Other versions==
==Other versions==
===Family Computer Disk System port===
===Family Computer Disk System port===
[[File:MinusWorldJapan.png|thumb|right|The Family Computer Disk System version of the Minus World]]
[[File:MinusWorldJapan.png|thumb|The Family Computer Disk System version of the Minus World]]
In the [[Family Computer Disk System]] version of ''Super Mario Bros.'', the Minus World is accessed the same way, but it is very different in design.<ref>[http://www.youtube.com/watch?v=xB2i-QOsBpw A YouTube video of the Japanese version of the Minus World]</ref> World -1 is just like [[World 1-3 (Super Mario Bros.)|World 1-3]] but with underwater gameplay (despite lacking actual visual water) and featuring bizarre elements such as multiple floating [[Princess Peach|Princess Toadstools]] that have no hitboxes, a floating headless [[Bowser]], a misplaced [[Hammer Bro]], as well as all objects using the "underwater" palettes (that is, green is replaced by gray), causing odd visuals.
In the [[Family Computer Disk System]] port of ''Super Mario Bros.'', the Minus World is accessed the same way, but it is very different in design.<ref>[http://www.youtube.com/watch?v=xB2i-QOsBpw A YouTube video of the FDS version of the Minus World]</ref>
 
World -1 is just like [[World 5-3 (Super Mario Bros.)|World 5-3]] but with underwater gameplay (despite lacking actual visual water) and some unusual elements, such as multiple floating [[Princess Peach|Princess Toadstools]] without hitboxes, a floating headless [[Bowser]], a misplaced [[Hammer Bro]], as well as all objects using the "underwater" palettes (that is, green is replaced by gray), causing odd visuals.


This marks the only instance of an underwater [[Goal Pole]] (without the flag), which can easily stop the game from progressing if touched too high; if reached halfway down or lower, this flagpole will actually take Mario to '''World -2''', a level identical to [[World 7-3 (Super Mario Bros.)|World 7-3]]. However, if Mario is to die on this level after passing the [[checkpoint]], he will spawn beneath the bridge there, causing him to instantly die again, the process repeating until the player receives a [[Game Over]]. There is finally a '''World -3''' after this level; World -3 is a version of [[World 4-4 (Super Mario Bros.)|World 4-4]] that lacks its [[fake Bowser]] and maze elements, is colored underground, and is filled with flying [[Blooper|Bloober]]s that can be stomped for 1,000 [[point]]s. This weakness is otherwise unused due to Mario having different physics underwater, though it does appear in ''[[Super Mario Bros.: The Lost Levels]]''. In addition, upon the player completing the level, although Toad's message of ''"Thank you, Mario! But our princess is in another castle!"'' still plays, Toad himself is missing.
The level has a [[Goal Pole]] (without the flag), allowing the level to be completed normally. It can easily stop the game from progressing if touched too high, however. The level eventually leads to '''World -2''', a copy of [[World 7-3 (Super Mario Bros.)|World 7-3]]. However, the [[checkpoint]] is placed beneath the bridge, leading to an [[unwinnable state]] if Mario dies during the level. This level can also be completed normally and leads to '''World -3''', a copy of [[World 4-4 (Super Mario Bros.)|World 4-4]] that lacks its [[fake Bowser]] and maze elements, is set underground, and filled with flying [[Blooper|Bloober]]s that can be stomped for 1,000 [[point]]s. This weakness is otherwise unused due to Mario having different physics underwater, though it does appear in ''[[Super Mario Bros.: The Lost Levels]]''. In addition, upon the player completing the level, Toad's message of ''"Thank you, Mario! But our princess is in another castle!"'' plays as normal, despite Toad's sprite being missing.


Beating World -3 takes the player to the title screen. If the player starts the game again after going through the Minus World, it will replace all [[Goomba]]s with [[Buzzy Beetle]]s and will be like [[Hard Mode]], as if the player cleared the game.
Beating World -3 takes the player to the title screen, as the game treats completing a castle level in World 8 or later as beating the game. If the player starts the game again after going through the Minus World, [[Hard Mode]] will be activated as normal.


===''VS. Super Mario Bros.''===
===''VS. Super Mario Bros.''===
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===''Super Mario Bros.: The Lost Levels''===
===''Super Mario Bros.: The Lost Levels''===
Attempting to do this with the Warp Zone pipe to [[World 4 (Super Mario Bros.: The Lost Levels)|World 4]] in [[World 1-2 (Super Mario Bros.: The Lost Levels)|World 1-2]] of ''[[Super Mario Bros.: The Lost Levels]]'' will lead to two possible outcomes. First, it can send Mario or Luigi to the bonus area in another part of the level.<ref>[https://www.youtube.com/watch?v=wSeEby9qncA Glitch to 1-2 bonus area]</ref> Second, it could send him back to the underground bonus area of [[World 1-1 (Super Mario Bros.: The Lost Levels)|World 1-1]]. The computer will still recognize the level as World 1-2 and the time will not reset. Completing it will send the player to [[World 1-3 (Super Mario Bros.: The Lost Levels)|World 1-3]].<ref>[https://youtu.be/pCN4EziwS8k?t=910 Tutorial: How to Beat Super Mario Bros.: The Lost Levels in 7:56]</ref><ref>[https://www.youtube.com/watch?v=hHPCK8sGuuo TAS run showing the glitch to 1-1 bonus area]</ref>
Attempting to do this with the Warp Zone pipe to [[World 4 (Super Mario Bros.: The Lost Levels)|World 4]] in [[World 1-2 (Super Mario Bros.: The Lost Levels)|World 1-2]] of ''[[Super Mario Bros.: The Lost Levels]]'' will lead to two possible outcomes. First, it can send Mario or Luigi to the bonus area in another part of the level.<ref>[https://www.youtube.com/watch?v=wSeEby9qncA Glitch to 1-2 bonus area]</ref> Second, it could send him back to the underground bonus area of [[World 1-1 (Super Mario Bros.: The Lost Levels)|World 1-1]]. The game will still recognize the level as World 1-2 and the time will not reset. Completing it will send the player to [[World 1-3 (Super Mario Bros.: The Lost Levels)|World 1-3]].<ref>[https://youtu.be/pCN4EziwS8k?t=910 Tutorial: How to Beat Super Mario Bros.: The Lost Levels in 7:56]</ref><ref>[https://www.youtube.com/watch?v=hHPCK8sGuuo TAS run showing the glitch to 1-1 bonus area]</ref>


===''All Night Nippon Super Mario Bros.''===
===''All Night Nippon: Super Mario Bros.''===
By using the same trick in ''[[All Night Nippon Super Mario Bros.]]'', if Mario enters the leftmost pipe, he will instead be transported through the end-of-level pipe and be able to progress to World 1-3. If he enters the other pipes, he will be sent back to World 1-1, but it will be labeled 1-2 with the time not having been reset and all pipes hosting [[Piranha Plant]]s. If he completes this level, he progresses to World 1-3, but dying sends him back to the real World 1-2.<ref>[https://www.youtube.com/watch?v=FlsvjKF94Gc All Night Nippon 1-2 Warp Zone Oddities]</ref><ref>[http://sydlexia.com/all_night_nippon_smb.htm All Night Nippon Super Mario Bros.]</ref>
By using the same trick in ''[[All Night Nippon: Super Mario Bros.]]'', if Mario enters the leftmost pipe, he will instead be transported through the end-of-level pipe and be able to progress to World 1-3. If he enters the other pipes, he will be sent back to World 1-1, but it will be labeled 1-2 with the time not having been reset and all pipes hosting [[Piranha Plant]]s. If he completes this level, he progresses to World 1-3, but dying sends him back to the real World 1-2.<ref>[https://www.youtube.com/watch?v=FlsvjKF94Gc All Night Nippon 1-2 Warp Zone Oddities]</ref><ref>[https://web.archive.org/web/20090922184453/http://sydlexia.com/all_night_nippon_smb.htm All Night Nippon Super Mario Bros.]</ref>


===''Super Luigi Bros.''===
===''Super Luigi Bros.''===
The Minus World can be entered in ''Super Luigi Bros.'' found in ''[[NES Remix 2]]''. Like the rest of this mode, it is mirrored so Luigi has to swim from right to left.<ref>[https://www.youtube.com/watch?v=rSngR733xdE Minus World in ''Super Luigi Bros.'']</ref>
The Minus World can be entered in ''Super Luigi Bros.'' found in ''[[NES Remix 2]]''; however, due to Luigi's higher jumps, it is trickier to do so than in the original game. Like the rest of this mode, it is mirrored so Luigi has to swim from right to left.<ref>[https://www.youtube.com/watch?v=rSngR733xdE Minus World in ''Super Luigi Bros.'']</ref>


===''Speed Mario Bros.''===
===''Speed Mario Bros.''===
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==Removal==
==Removal==
The Minus World glitch has been "removed" from remakes of ''Super Mario Bros.'' In ''[[Super Mario All-Stars]]'', if the trick is performed, the Warp Pipes will still take Mario to their respective worlds as if the pipes were reached by walking along the ceiling. In ''[[Super Mario Bros. Deluxe]]'' and ''[[Super Mario Bros. 35]]'', the ability to perform the trick has been removed entirely. However, the glitch remains in the Virtual Console releases and ''[[Game & Watch: Super Mario Bros.]]'' as they are a direct emulation of the original game.
The Minus World glitch has been removed from remakes of ''Super Mario Bros.'' In ''[[Super Mario All-Stars]]'', if the trick is performed, the Warp Pipes will still take Mario to their respective worlds as if the pipes were reached by walking along the ceiling. In ''[[Super Mario Bros. Deluxe]]'' and ''[[Super Mario Bros. 35]]'', the ability to perform the trick is removed entirely. However, the glitch remains in the [[Virtual Console]] ports, in [[Nintendo Entertainment System - Nintendo Switch Online]], and in ''[[Game & Watch: Super Mario Bros.]]'', as they are direct emulations of the original game.


==Hacking==
==Hacking==
If one uses a gaming tool that can set the level that Mario is on, the Minus World goes all the way to -9. After -9, it changes to -A, later to -B, -C, and so on. After the letters, it changes to random bits of the terrain of all the levels. There are 215 of these bits. These levels are the result of level layouts being loaded with the wrong tilesets, enemy layouts, and properties.
If one uses a hacking tool that can set the level that Mario is on, the Minus World goes all the way to -9. After -9, it changes to -A, later to -B, -C, and so on. After the letters, it changes to random bits of the terrain of all the levels. There are 215 of these bits. These levels are the result of level layouts being loaded with the wrong tilesets, enemy layouts, and properties.


Specifically, World -2 is a version of [[World 3-4 (Super Mario Bros.)|World 3-4]] with water graphics; World -3 is a version of World 3-4 with overworld graphics, and being loaded with random enemy layouts, sprites, and properties. World -4 and World -5 are both black screens. World -6 is a glitched-out level that appears in a [[World 6-3 (Super Mario Bros.)|World 6-3]] theme. Some gray bricks may be found on the edge of it, and a white [[Goomba]] will fall into the pit. The entire level is a pit, so Mario loses a life instantly. World -7 is a copy of [[World 3-3 (Super Mario Bros.)|World 3-3]]. After the player passes it, the game takes them to World -8, which starts off using the intro for [[World 1-2 (Super Mario Bros.)|World 1-2]], [[World 2-2 (Super Mario Bros.)|World 2-2]], [[World 4-2 (Super Mario Bros.)|World 4-2]], and [[World 7-2 (Super Mario Bros.)|World 7-2]], although the game blacks out after Mario reaches the pipe. World -A is a castle level that Mario cannot move in, and -9, -B, and -C are a black screen. All the levels after -4 can be played only by using cheats or hacking.
Specifically, World -2 is a version of [[World 3-4 (Super Mario Bros.)|World 3-4]] with water graphics; World -3 is a version of World 3-4 with overworld graphics, and being loaded with random enemy layouts, sprites, and properties. World -4 and World -5 are both black screens. World -6 is a glitched-out level that appears in a [[World 6-3 (Super Mario Bros.)|World 6-3]] theme. Some gray bricks may be found on the edge of it, and a white [[Goomba]] will fall into the pit. The entire level is a pit, so Mario loses a life instantly. World -7 is a copy of [[World 3-3 (Super Mario Bros.)|World 3-3]]. After the player passes it, the game takes them to World -8, which starts off using the intro for [[World 1-2 (Super Mario Bros.)|World 1-2]], [[World 2-2 (Super Mario Bros.)|World 2-2]], [[World 4-2 (Super Mario Bros.)|World 4-2]], and [[World 7-2 (Super Mario Bros.)|World 7-2]], although the game blacks out after Mario reaches the pipe. World -A is a castle level that Mario cannot move in, and -9, -B, and -C are a black screen. All the levels after -4 can be played only by using cheats or hacking.
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==References in other games==
==References in other games==
*In ''[[Super Paper Mario]]'', [[The Underwhere]] is called "World -1" by its residents.
*''[[Donkey Kong Country 2: Diddy's Kong Quest]]'': The manual's description for [[Plus and Minus Barrels|Minus Barrels]] makes a Minus World reference by jokingly attributing them the ability to send the player to the Minus World.
*The ''[[Donkey Kong Country 2: Diddy's Kong Quest]]'' manual's description for [[Plus and Minus Barrels|Minus Barrels]] makes a Minus World reference by jokingly attributing them the ability to send the player to the Minus World.
*''[[Super Paper Mario]]'': [[The Underwhere]] is called "World -1" by one of the residents.
*In [http://www.smashbros.com/wii/en_us/gamemode/various/various09.html Smash Bros. DOJO!!], the official ''[[Super Smash Bros. Brawl]]'' website, there is a screenshot showing a list of friends to whom Target Smash!! replays can be sent, with one of them nicknamed "World -1".
*''[[Super Smash Bros. Brawl]]'': On [http://www.smashbros.com/wii/en_us/gamemode/various/various09.html Smash Bros. DOJO!!], the official ''Super Smash Bros. Brawl'' website, there is a screenshot showing a list of friends to whom Target Smash!! replays can be sent, with one of them nicknamed "World -1".
*In ''[[Mario + Rabbids Kingdom Battle]]'', one of the [[List of weapons in Mario + Rabbids Kingdom Battle#Boomshot|weapons]], the Splatformer, references the Minus World.
*''[[Mario + Rabbids Kingdom Battle]]'': one of the [[List of weapons in Mario + Rabbids Kingdom Battle#Boomshot|weapons]], the Splatformer, references the Minus World in its description.


==Gallery==
==Gallery==
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==Trivia==
==Trivia==
*The game actually has 256 worlds in total; however, worlds past 8 and world 0 (World 0-1 is an underwater version of World 4-4) are glitched and reuse pointers from other levels in the level data. The Minus World (36) is the only one that can be accessed legitimately in the Western versions. These levels caused a rumor in Japan where a lightning strike on a [[Family Computer]] is said to create a Mario level never seen before, thought to be part of a secret World 9 (9-1 is an underwater version of World 6-2 that requires waiting a little to complete). However, the other glitch levels can be accessed in the Japanese version due to differences in the Family Computer hardware.<ref>[http://legendsoflocalization.com/super-mario-bros/misc/ Legends of Localization Super Mario Bros.: Miscellaneous]</ref> Most versions also feature differences in those glitched worlds, be it different enemy placement, differently placed levels, as well as completely new ones not available on other ports. The most famous method involves swapping cartridges with ''{{wp|Tennis (1984 video game)|Tennis}}'' while the power is on, which can potentially damage the console's hardware.<ref>[https://www.youtube.com/watch?v=Ik0LY8LVsM0 Experiments with the Tennis cartridge]</ref> [[World 9 (Super Mario Bros.: The Lost Levels)|World 9]] in ''The Lost Levels'' was inspired by this glitch.
[[File:Super Mario Bros.glitch world 9-1.png|thumb|"World 9-1", one of the 256 worlds]]
*One of the 256 worlds is a double negative world (world --1), which is actually world 40, because the - represents 40.
[[File:Sm64-glitch-world-twominus1.png|thumb|"World --1", another of the 256 worlds]]
*The game actually has 256 worlds in total; however, worlds past 8 and 0 (World 0-1 is an underwater version of World 4-4) are glitched and reuse pointers from other levels in the level data. The Minus World (36) is the only one that can be accessed legitimately in the Western versions. These levels caused a rumor in Japan where a lightning strike on a [[Family Computer]] is said to create a ''Super Mario'' level never seen before, thought to be part of a secret World 9 (9-1 is an underwater version of World 6-2 that requires waiting a little to complete). However, the other glitch levels can be accessed in the Japanese version due to differences in the Family Computer hardware.<ref>[http://legendsoflocalization.com/super-mario-bros/misc/ Legends of Localization Super Mario Bros.: Miscellaneous]</ref> Most versions also feature differences in those glitched worlds, be it different enemy placement, differently placed levels, as well as completely new ones not available on other ports. [[World 9 (Super Mario Bros.: The Lost Levels)|World 9]] in ''The Lost Levels'' was inspired by this glitch.
**A method of accessing these worlds involves swapping cartridges with ''{{wp|Tennis (1984 video game)|Tennis}}'' while the power is on, which can potentially damage the console's hardware.<ref>[https://www.youtube.com/watch?v=Ik0LY8LVsM0 Experiments with the Tennis cartridge]</ref> This glitch is due to the coincidental usage of the same RAM area between the two games that prevents a fail-safe from clearing the value which would normally store the most recently played world, which is used when holding the A button down on the start screen to continue a world after a Game Over. This value is overwritten by the "footstep counter" in ''Tennis''.<ref>[https://youtu.be/hrFHNgJlJSg Access Glitch Worlds in Super Mario Bros. via NES Tennis]</ref>
**One of the 256 worlds is a double negative world (World --1), which is actually World 40 since the first minus represents the number 40.


==References==
==References==