Mystery Zone

The Mystery Zone (Japanese: Mystery Place) is a location header that is programmed into every core series game since Generation IV.
==Generation IV==
In the Generation IV games, location ID 0x0000 "Mystery Zone" is usually seen in some of the areas found in the void but it is also used for certain unused locations as well as the Underground.
The Japanese versions of , identify the undefined areas as ; however, they still identify a 's location set to the Mystery Zone as . This is because the two are different location IDs that share the name "Mystery Zone" in English games; whereas 0x0000 is used for map IDs, 0x07DC is used for caught Pokémon.
===Access===
The Mystery Zone is normally inaccessible, but can be entered by means of tweaking. In earlier copies of the Japanese versions of , the Surf glitch is an alternative method. It can also be accessed with the use of cheating devices.
===Music===
In , the background music theme is usually the unused copy of Route 206 (Day), which is identified internally as SEQ_DUMMY.
In , the background music theme is also SEQ_DUMMY but it is a copy of Route 29 instead. It is not affected by the GB Sounds.
===Behaviors===
Upon entering a map ID 0 "Mystery Zone" and accessing a location with a different map ID, the will not be updated even if the new area is programmed to use a different tileset. Simply refreshing the graphics will solve this. Sinnoh's Mystery Zone has its own tileset which can be seen by entering it from the overworld, refreshing the graphics there, and then returning to the overworld. This tileset is actually a slightly distorted depiction of the tileset shown in a pre-release screenshot of , indicating that it is a leftover from the development period. It also remains within the internal data of .
On the 1.0 release of the Japanese versions of Diamond and Pearl, both the menu and the Explorer Kit are usable in a Mystery Zone. On later releases, the localizations, and , neither the menu or the Explorer Kit can be opened (in Pokémon HeartGold and SoulSilver, the touchscreen menu is locked), although a registered Key Item like the Town Map can still be used to refresh the graphics in the area at any time.
==Later generations==
In the Generation V games, inaccessible sections of areas use the header and background music of the location from which they were entered. For example, in , if the player keeps heading north of , going outside the boundaries of the map, the game will still recognize the location as being "Route 19" until the player arrives at another normally accessible location.
The "Mystery Zone" header (0x0001 in Generation V, 0x0002 in Generation VI and ) in these generations is completely unused.
The Generation V equivalent to Generation IV's SEQ_DUMMY music theme is called SEQ_BGM_DUMMY and is a copy of Icirrus City.
==Variants==
There are many different variants of the Mystery Zone Across the series.
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None.png|NULL - Empty Map (Black Void)
MysteryZone173Plat.PNG|173 - ro_treec (West Forest)
MysteryZone174Plat.PNG|174 - ro_seac (Sea)
MysteryZone175Plat.PNG|175 - ro_mountc (Mountainous)
MysteryZone176Plat.PNG|176 - ro_tree2c (East Forest)
MysteryZone177Plat.PNG|177 - ro_tree3c (Snow Forest)
MysteryZone178Plat.PNG|178 - ro_snowc (Flat Snow)
MysteryZone179Plat.PNG|179 - ro_tree4c (Fight Area)
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* NULL - Empty Map (Black Void)
* 208 - ro_treec (Forested)
* 209 - ro_seac (Sea)
* 210 - ro_mountc (Mountainous)
======
* NULL - Empty Map (Black Void)
* 103 - map_outgrass (Grass Flat)
* 104 - map_outtree (Eastern Forested)
* 105 - map_outrock (Mountainous)
* 106 - map_outsea (Sea)
* 107 - map_outdesert (Desert Plateau)
* 204 - map_outtree1 (Western Forested)
======
* NULL - Empty Map (Black Void)
* 103 - map_outgrass (Grass Flat)
* 104 - map_outtree (Eastern Forested)
* 105 - map_outrock (Mountainous)
* 106 - map_outsea (Sea)
* 107 - map_outdesert (Desert Plateau)
* 204 - map_outtree1 (Western Forested)
==In other languages==
==See also==
* Tweaking
==External links==
* Void Knowledge Archive, by the members of HallofOrigin - Google Drive
** GCLF thread
Category:Glitch and Beta locations
de:Mysteriöse Zone
fr:Zone Mystère
it:Zona Misteriosa
ja:なぞのばしょ
zh:神秘的地方