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#REDIRECT [[Valid source map Glitch City#Through wrong warps]]
[[File:Glitchcity6.png|frame|right|A Sea Route 20 Glitch City, caused by the [[Safari Zone exit glitch]]]]
'''Wrong warp Glitch Cities''' are a type of [[Glitch City]] in {{RBY}}. These Glitch Cities appear when the game uses an invalid entrance or exit point for a map (i.e. one that doesn't exist).
This can be achieved through the [[Safari Zone exit glitch]] or by modifying the address D365 (D364 in Yellow), either through cheating, through changing the quantity of item 36 in an [[expanded items pack]] (for English versions), or through [[arbitrary code execution]].
The Safari Zone exit glitch only allows access to a few warp hex:04 Glitch Cities, but modifying the address D365/D364 (the last location to load the player for certain exits) allows the player to access more.
== Specific Glitch Cities ==
These are specific Glitch Cities accessible through the Safari Zone exit glitch.
'''Glitch City''' (Be recalled in: Sea Route 20)
Glitch City is fairly navigable compared to other 'regions'. Do not try to cut down any trees or enter any caves - trees regenerate, and caves do not work. Entering the nearest one causes you to get trapped.
'''Glitch Mountain''' (Be recalled in: Cycling Road)
Glitch Mountain is also fairly navigable. Like in Cycling Road, your character is constantly moving downhill. Because of this, you cannot Surf on any of the blocks of water.
'''Glitch League''' (Be recalled in: Indigo Plateau or Route 23)
Glitch League is not as easily navigable as Glitch City or Glitch Mountain. You can only move around a very small area, but you can see pieces of statues, water, and all kinds of other stuff.
==Traits==
Glitch Cities accessed through the Safari Zone exit glitch happen when the game places the player at an invalid 'exit point hex:04'. Fuchsia City has a valid exit point hex:04, which is on the Safari Zone building's door.
This is why when the player lands their final Safari Zone step in Fuchsia City, or without changing the value of D365/4, walking out the Safari Zone gate will have the game take the player to the Safari Zone door without loading a Glitch City.
Furthermore, certain locations such as Cerulean City have a valid exit point hex:04, so landing the final Safari Zone step there will make the player step out of a building, such as Cerulean City's Bike Shop.
Wrong warp Glitch Cities are not unique locations, but rather a temporarily corrupted version of an existing map.
This can be proven by viewing the memory address D35E (D35D) in Yellow, and looking up the value [http://bulbapedia.bulbagarden.net/wiki/List_of_locations_by_index_number_(GB) here]. Additionally, when a player checks the Town Map while in a Glitch City, the map says that they are in the source map.
Also, attributes of the source map are preserved. The Cycling Road Glitch City forces the player to move downward, in the same manner that the Cycling Road itself does. The tileset of the map is the same as the source map. The sizes of the map are preserved as well.
Wild Pokemon are also preserved; if the source map had wild Pokémon data, then those Pokemon will appear when Surfing in Glitch City. If the Glitch City had a 'left-facing strait tile', it is possible to perform the [[left-facing shore tile glitch]] with it. This is possible with the Sea Route 19 Glitch City. [[Missingno.]] and other Pokémon can be made to appear in a Glitch City via the [[old man trick]].
A number of interesting changes are made to the map when it is corrupted. Some of these are relatively obvious, while others are more subtle.
*All terrain in the map is corrupted beyond recognition.
*Warps and objects are ignored and do not appear in Glitch Cities. This is why doors, signs, and cave entrances do nothing when they appear in Glitch Cities, and why people never appear in Glitch Cities.
**Objects are anything on the overworld that takes up space and can be interacted with using the A button. People and cuttable trees are objects. There are also invisible objects that are placed over signposts -- signs, like doors, don't do anything on their own.
====Map links and glitched coordinates====
Map links still exist in Glitch Cities, but going from one map to another will not fix the Glitch City. The player's coordinates on a Glitch City may be glitched.
In Pokémon Red and Blue, Sea Route 20's Glitch City takes the player to coordinates of y=107 (hex:6B) and x=107, while the highest valid coordinates for that route are y=17 (hex:11) and x=99 (hex:63).
Basically, this means that initially going west too much counts as taking the player to the east connection hex:64 (Sea Route 19) and going right too much counts as taking the player to the west connection hex:FF (Cinnabar Island), but when a connection happens the player's coordinates are updated like normal (e.g. going to the hex:64 connection makes the player's new x coordinate 00 because this is the minimum x coordinate for Sea Route 19). As FF is a west connection to get to Sea Route 20, going one more step west takes the player back to Sea Route 20, due to the byte 'underflow' from 00 to FF.
==See also==
*[[255 hours glitch]].
[[Category:Glitch areas]]
[[Category:Generation I glitches]]
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