MissingNo.: Difference between revisions

'''Missing Number''' (Japanese: '''けつばん''' ''Ketsuban'', lit. "Missing Number"), displayedreferred to by Nintendo of America as '''MissingNo.''', and appearing in-game as '''MissingNoMISSINGNO.''', refers to a group of glitch Pokémon that act as fillers for vacant slots. ForIn eachthe versionJapanese versions, there are 3938 separate MissingNo. slots, whereas in the Western localizations, there are 39. Three particular examples also serve a specific purpose throughout the game; as the Kabutops Fossil, the Aerodactyl Fossil, and Pokémon Tower Ghost.

Most of the data pertaining to MissingNo. is clearly glitched and unintentional (and there is no error prevention, unlike for example the placeholder sprite loaded in place for the Generation III glitch Pokémon [[??????????]]) and in itself MissingNo. is not a legitimate Pokémon, but [[Partially unused and glitched|curiously some data]] like nine of the MissingNo. cries are leftover development remnants. During the development of Pokémon Red, Green and Blue, the index numbers of many of the MissingNo. were instead occupied by [https://tcrf.net/Pok%C3%A9mon_Red_and_BluePokémon_Red_and_Blue/MissingNo.#MissingNo._List unreleased Pokémon], but in the final games the leftover cries and the name MissingNo. (Missing Number) are the only hints that cut Pokémon ever existed.

The index numbers for "MissingNo." entries appear in between valid Pokémon,. andThe combined2020 theyPokémon addBlue upsource tocode 190leak entriesrevealed (151that validthe Pokémon+3936 regular MissingNo.). Thiscorrespond wasto indeleted factPokémon; anhowever, earlyit numberhas forbeen theknown total[https://glitterberri.com/pokemon-2/ numberas ofearly Pokémonas according1997 tothat theover 2020200 Pokémon Bluewere source code leakdesigned], butwhich it is also known that in total Game Freak have createdwas [http://lavacutcontent.com/sugimori-masuda-developer-interview/ evenfurther morereinforced draftin designsJuly of Pokémon2000]/or. Additionally, the [https://tcrf.net/Prerelease:Pok%C3%A9mon_Red_and_BluePokémon_Red_and_Blue/Early_Development#Capsule_Monster_Pitch any other monster designs pertaining to the Capsule Monsters pitch] thanfrom 190, just not necessarily ever programmed into the game. One MissingNo. that doesn't exist in the final games may have1990] also beenmentioned replaced"over with200 Mewtypes (henceof hypothetically at this point in development, there were 40 MissingNo.; not 39)monsters". According to [https://wwwiwataasks.nintendo.co.ukcom/Iwata-Asksinterviews/Iwata-Asks-Pokemon-HeartGold-Version-SoulSilver-Versionds/Iwata-Asks-Pokemon-HeartGold-Version-SoulSilver-Versionpokemon/1-Just-Making-The-Last-Train0/0/1-Just-Making-The-Last-Train-225842.html Iwata Asks (Pokémon HeartGold and SoulSilver)], Mew was programmed into the game near the very end, after debugging features were removed to make space. At some point (as found by asset leaks) a cut Pokémon actually occupied this Mew's index number (0x15, dec:21) as [https://tcrf.net/Development:Pok%C3%A9mon_Red_and_BluePokémon_Red_and_Blue/Pok%C3%A9mon_DataPokémon_Data Omega].

All MissingNo. are Pokédex number ([[Glitch Pokémon family|family]]) 0, which is coincidentally the same Pokédex number as 'M (00). However, only (English versions) 'M (00)/|3TRAINERPOKé₽ (00) are [[index number]] 0 (when distinguished from the Pokédex number, and some index number 0 Pokémon have non-0 Pokédex numbers, such as 176 for 3TRAINERPOKé₽).

In the Japanese player base (where the left-facing shore tile glitch is impossible), the [[Select glitch]] (exclusive to Japanese Red/Green/Blue) and [[Trainer escape glitch]] (accessible in both Japanese and international versions but typically referred to as "fifth" in the Japanese player base), as well as [[Move 0x00 corruption (Generation I)|move 0x00 corruption]] (all versions but easy to set up with Select glitch or Red and Blue using a move swap on an opponent with more than one move with Ditto and Transform), or [[unterminated name glitch item instant encounter]] (provided the front sprite is not problematic) are typically used in its place. In the Japanese player base, [[GlitchDexJP/RG:255|アネﾞデパミﾞ (FF)]] is also similarly well-known (in comparable popularity to MissingNo. and 'M), and can easily be seen replacing the first Pokémon with the [[dokokashira door glitch]]. The Japanese equivalent to 'M (00) is [[GlitchDexJP/RG:000|ィﾞゃゾＡ]] (also Pokédex number 0).

In the French, German, Italian and Spanish versions, the left-facing shore tile glitch was partially patched in the Italian and Spanish versions of Red and Blue. The Italian and Spanish versions require using [[walk through walls]] on the coast instead of Surfing. In all versions of Pokémon Yellow, the old man glitch was also fixed. For the affected versions, this (and versions where MissingNo.'s front sprite freezes) made the accessibility of finding MissingNo. harder, but it can still be encountered with the Trainer escape glitch in all versions, and with Move 0x00 corruption (though it may require a trade for Pokémon Yellow, as the [[swapping Transform moves glitch]] typically used to obtain it as the first move was fixed there). Additionally, the Spanish and Italian versions have their own [[Grass/rock Surfing glitch|exclusive glitch]] for finding MissingNo. or 'M (00), which some native Italian and Spanish players have exploited.

Sometimes, specifically for Fossil and Ghost MissingNo. (182-184) because they bypass a freezing front sprite while still duplicating the sixth item, players for versions such as Pokémon Yellow (English) will use a sub-glitch such as the Ditto glitch or a chain of encounters when [[Trainer escape glitch#Trade NPC Pokémon and resulting Pokémon|speaking with a trade NPC before returning to the route]]) to access Special stats as high as 182-184.

*[[Arbitrary code execution#Using 8F (Red/Blue)|Arbitrary code execution e.g. with 4F/8F/etc.]] (for exploits involving [[glitch items]], requires other glitches to obtain them, such as with the [[expanded item pack]], [[dry underflow glitch]], [[Celadon looping map trick]]).

*[[Grass/rock Surfing glitch]] (exclusive to these versions without more complex modifications; see [[8 8 (0x7C) grass/rock surfing glitch]] and [[submerge glitch]] for 'porting' it to non-Italian and Spanish versions).

*Other international glitches where applicable (does not include old man glitch for Surfing on the coast as opposed to walking with walk through walls).

{{Evolution2S|1=[[File:RBGlitch254.png|link=GlitchDex/RB:244]]<br>{{gdex|RB:244|ゥ₽ (F4)}}|C=<br>Level 195|2=[[File:MissingNo. RB SGB.png]]<br>MISSINGNO. (B5)}}

*Ditto trick/Trainer-Fly variation (fossil/ghost MissingNo. recommended to avoid a freeze, alternatively the "[[stable unstable MissingNo.]]" method, or setting up a Trainer-Fly inside of the Pokémon Tower, encountering it without a Silph Scope, then altering the current map to a map other than Pokémon Tower to catch it without the Silph Scope with [[expanded inventory]]).

*[[Arbitrary code execution#Using "ws m" (Yellow)|Arbitrary code execution e.g. with 4F/ws m/Pikachu off-screen glitch etc.]] (for exploits involving [[glitch items]], requires other glitches to obtain them, such as with the [[expanded item pack]], [[dry underflow glitch]], [[Celadon looping map trick]]).

*[[Arbitrary code execution|Arbitrary code execution e.g. with ５かい or てヘ (tehe)]] (for exploits involving [[glitch items]], requires other glitches to obtain them, such as with the [[expanded item pack]], [[dry underflow glitch]], [[Cycling Road height trick]]. The expanded inventory can also be obtained [[Walk through walls glitch (Select glitch method)|during Select glitches]].)

==PlaceholderCut Pokémon theorythat became MissingNo.==

File:MissingNo. RB SGB.png|Red/Blue regular MissingNo. sprite

File:RB Backsprite Family 000 SGB.png|Sample Red/Blue backsprite. Actually 'random', from 0x8F37 in VRAM.

In [[bp:Generation IV|Generation IV]], there is a sprite that reads 'missing number' (けつばん) in kanji (欠番) but it is not related to the glitch Pokémon MissingNo. and the name MissingNo. from Generation I.<ref>[http://iimarckiimarckus.usorg/i/missing-number/ Missing Number - iimarckus.org]</ref>. "(The) MissingNo." may also be used as a term to describe the [[:#cut Pokémon that became MissingNo.|cut Pokémon that became MissingNo.]]