Mew glitch

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File:Wildmew.jpg

A wild Mew being found using the Mew glitch

The Mew glitch is a software bug in all three of the Generation I Game Boy games, discovered in 2003. This glitch is famous for allowing players to catch any non-glitched Pokémon in the game, most notably Mew. Method #3 of the Mew glitch allows one to catch both glitch Pokémon and regular Pokémon.

Methods

Method #1

To acquire Mew at the earliest point possible in the game, the player must not have defeated the Swimmer in Cerulean Gym and the Jr. Trainer (the one who says "I saw your feat from the grass" when the battle with him begins) on Route 24 in the grass. The player must defeat Nugget Bridge as usual.

Note that the player must have an Abra that can teleport, and therefore if playing Yellow Version must have reached Route 5 or traded for one previously.

The player first heals at the Cerulean City Pokémon Center, so they may teleport there later. The player then needs to add an Abra to the party and go to Route 24. The player then needs to stand above the Jr. Trainer so that he is just off the screen. Then the player must move down until seen and immediately press the "START" button. The player then needs to use teleport with Abra. If done correctly, the Jr. Trainer should get the indicative exclamation mark while the player teleports. At this point, the menu will not work until the player battles, though it is imperative to not battle.

The player then needs to head east from the Pokémon Center into the Cerulean Gym and battle the Swimmer. After defeating the Swimmer (the menu should be available upon victory), the player then must head to Route 24, and after several steps the menu will appear. Upon closing of the menu, a battle will begin with a wild Mew.

Method #1 (alternate method)

The player must follow the steps for Method #1 exactly until after teleporting from the Jr. Trainer. The player then must head north towards Route 25 and battle the Youngster. As in Method #1, it is imperative to not battle before then. The player must engage in battle by being seen (and must walk along the wall to be seen, not towards him or the game will freeze).

After defeating the Youngster, the player then needs to walk towards Cerulean City. After a certain amount of steps, the Start menu appears. Closing it should begin a battle against a wild Mew.

Method #2

For this method, the player needs to find any trainer in the game that will engage in battle the moment the trainer is on screen and the player is in the trainer's line of sight. The player then needs to take one step down closer to the NPC, but make sure that the NPC does not see the player, and then immediately press the "START" button. The menu will appear and the player will be able to Fly or Teleport. The player needs to fly or teleport to Cerulean City. While flying, the exclamation point that usually appears above a Trainer's head when they challenge the player to battle will appear. The player then needs to go to Route 24 and, defeat the Youngster that owns a Slowpoke (and must walk along the wall to be seen, not towards him or the game will freeze). After defeating him, the player needs to fly or teleport to Lavender Town and head to Route 8. The menu will appear. Pressing B will make a wild Mew appear at Level 7.

Ditto glitch

This method is also known as "Method #3".

For this method, the player first needs a Pokémon with a Special stat of 21. It doesn't matter if the stat was naturally leveled or boosted with stat experience, as long as it's not due to an in-battle Special-stat boosting skill. The player needs to find any trainer in the game that will engage in battle the moment the trainer is on screen and the player is in the trainer's line of sight. The player then needs to take one step down closer to the NPC, but make sure that the NPC does not see the player, and then immediately press the "START" button. Once the player has pressed start and the menu appears, the player needs to fly or teleport elsewhere. The location being traveled to must have a path via which the player can walk both to a place where there are wild Ditto (Route 15^{Wrong template. See Template:Sup/doc.} or Pokémon Mansion^{Wrong template. See Template:Sup/doc.}) and after to a place with a trainer to fight. This is because the start button will no longer work until after a battle with a trainer (to be mentioned) because the game has been tricked into thinking it's in battle mode. Once the battle with the trainer the player picked was evaded successfully, the player then needs to battle any trainer, as long as there is one space between the player and the trainer when the battle is initiated so that the trainer has to walk up to the player. After defeating the trainer, the player needs to encounter a wild Ditto, and battle it until it uses Transform on the player's Pokémon with the Special Stat of 21. After defeating the Ditto (with any of the player's Pokémon), the player must not battle, and go back to the location where the trainer the player first evaded is located. Once the location is approached, the menu will automatically appear. The player must press the B button. A battle will begin with a wild Mew.

This method can be used to catch any Pokémon in the game, even some glitch Pokémon. While a Pokémon with a special stat of 21 will give one Mew, using a Pokémon with a different special stat will give the player a different Pokémon. For example, in the Red/Blue versions, if a Pokémon with a Special stat of 198 is used, LM4 will appear instead of Mew. Some Special stats will cause glitch Trainers to appear.

Glitch Pokémon

Many different regular and glitch Pokémon can be encountered with the Ditto glitch. Here is a chart showing which special stat corresponds to which Pokémon.

Pokemon	Special Stat #
Spearow	5
Voltorb	6
Nidoking	7
Slowbro	8
Ivysaur	9
Exeggutor	10
Lickitung	11
Exeggcute	12
Grimer	13
Gengar	14
Nidoran♀	15
Nidoqueen	16
Cubone	17
Rhyhorn	18
Lapras	19
Arcanine	20
Mew	21
Gyarados	22
Shellder	23
Tentacool	24
Gastly	25
Scyther	26
Staryu	27
Blastoise	28
Pinsir	29
Tangela	30
Growlithe	33
Onix	34
Fearow	35
Pidgey	36
Slowpoke	37
Kadabra	38
Graveler	39
Chansey	40
Machoke	41
Mr. Mime	42
Hitmonlee	43
Hitmonchan	44
Arbok	45
Parasect	46
Psyduck	47
Drowzee	48
Golem	49
Magmar	51
Mankey	52
Electabuzz	53
Magneton	54
Koffing	55
Seel	58
Diglett	59
Tauros	60
Farfetch'd	64
Venonat	65
Dragonite	66
Doduo	70
Poliwag	71
Jynx	72
Moltres	73
Articuno	74
Zapdos	75
Ditto	76
Meowth	77
Krabby	78
Vulpix	82
Ninetails	83
Pikachu	84
Raichu	85
Dratini	88
Dragonair	89
Kabuto	90
Kabutops	91
Horsea	92
Seadra	93
Sandshrew	96
Sandslash	97
Omanyte	98
Omastar	99
Jigglypuff	100
Wigglytuff	101
Eevee	102
Flareon	103
Jolteon	104
Vaporeon	105
Machop	106
Zubat	107
Ekans	108
Paras	109
Poliwhirl	110
Poliwrath	111
Weedle	112
Kakuna	113
Beedrill	114
Dodrio	116
Primeape	117
Dugtrio	118
Venomoth	119
Dewgong	120
Caterpie	123
Metapod	124
Butterfree	125
Machamp	126
Missingno.	127
Golduck	128
Hypno	129
Golbat	130
Mewtwo	131
Snorlax	132
Magikarp	133
Muk	136
Kingler	138
Cloyster	139
Electrode	141
Clefable	142
Weezing	143
Persian	144
Marowak	145
Haunter	147
Abra	148
Alakazam	149
Pidgeotto	150
Pidgeot	151
Starmie	152
Bulbasaur	153
Venusaur	154
Tentacruel	155
Goldeen	157
Seaking	158
Ponyta	163
Rapidash	164
Rattata	165
Raticate	166
Nidorino	167
Nidorina	168
Geodude	169
Porygon	170
Aerodactyl	171
Magnemite	173
Charmander	176
Squirtle	177
Charmeleon	178
Wartortle	179
Charizard	180
Oddish	185
Gloom	186
Vileplume	187
Bellsprout	188
Weepinbell	189
Victreebell	190
Rhydon	257
Kangaskhan	258
Nidoran♂	259
Clefairy	260

Missing numbers can be assumed to be glitch Pokemon and Trainers.-->

Level

A Pokémon encountered using the Mew glitch is most commonly level 7. This is because as one Pokémon's Special Stat corresponds to the index number of the Pokémon, the Pokémon's level also corresponds to the attack stage of the last encountered Pokémon. The attack stage is the variable which is changed when a stat-modifying move like Growl is used. 7 is the unchanged value, but will range from 1 to 13 depending on how many attack boosts or drops the opponent received. For example, if the player used Growl on the Pokémon six times, he or she could encounter a level 1 Pokémon. However, Pokémon with levels 14 to 255 and 0 cannot be found this way, because a Pokémon cannot have more than six attack boosts or drops.

If the Ditto glitch is used and a glitch Trainer is encountered, they will have a different team corresponding to the attack stage. Usually the game will attempt to load their 7th team in memory. Most Trainers only have one set team, causing glitchy teams if an attack-modifying move is not used to lower the attack stage to 1. The only Trainers with more than one team are Prof. Oak and Blue, who have three different teams based on the player's starter. This is the only way to face Prof. Oak with his original team.

Overview

The glitch in fact works as follows: Any Trainer can be used for the first section, as long as the Trainer notices the player as soon as he/she enters the game screen, and that the player is walking towards them from either the top, left or right (walking from below will not work). Teleport and Fly (or Escape Rope and Dig if in a dungeon) can be used to trigger the glitch. For the Youngster, any Pokémon will do as long as it can be fought without walking up to a Trainer. To finish off the glitch, the player must return to the route of the Trainer evaded. The Pokémon that the player will find wild is dependent on the Special stat of the Pokémon the player last faced (wild or from the Trainer), and so using a Pokémon with the Special stat the player needs and finding a Ditto that transforms will produce an identical effect. The required Special stat for Mew is 21.

External Links

• Video of Method #2 on Google Video
• Video of Method #1

References

Glitches in the Pokémon games Multiple generations Transform glitches • Glitch Trainers • Cloning glitches • Error messages • Arbitrary code execution Generation I Glitches • Battle glitches • Overworld glitches -- • 0 ERROR • Broken hidden items • Cable Club escape glitch • Dual-type damage misinformation Experience underflow glitch • Fight Safari Zone Pokémon trick • Glitch City • Item duplication glitch • Item underflow Mew glitch • Old man glitch • Pewter Gym skip glitch • Pokémon merge glitch • Rhydon glitch • Rival twins glitch Select glitches (dokokashira door glitch, second type glitch) • Super Glitch Time Capsule exploit • Walking through walls • ZZAZZ glitch Generation II Glitches • Battle glitches Bug-Catching Contest glitch • Celebi Egg glitch • Coin Case glitches • Experience underflow glitch Glitch dimension • Glitch Egg • Teru-sama • Time Capsule exploit • Trainer House glitches • GS Ball mail glitch Generation III Glitches • Battle glitches • Overworld glitches Berry glitch • Dive glitch • Pomeg glitch • Glitzer Popping Generation IV Glitches • Battle glitches • Overworld glitches Acid rain • GTS glitches • Pomeg glitch • Rage glitch Surf glitch • Tweaking • Pal Park Retire glitch Generation V Glitches • Battle glitches • Overworld glitches Charge Beam additional effect chance glitch • Charge move replacement glitch • Choice item lock glitch Frozen Zoroark glitch • Sky Drop glitch Generation VI Glitches • Battle glitches • Overworld glitches Charge Beam additional effect chance glitch • Charge move replacement glitch • Choice item lock glitch Lumiose City save glitch • Symbiosis Eject Button glitch • Toxic sure-hit glitch Generation VII Glitches • Battle glitches Charge Beam additional effect chance glitch • Charge move replacement glitch • Choice item lock glitch Toxic sure-hit glitch • Rollout storage glitch Generation VIII Glitches Charge Beam additional effect chance glitch • Charge move replacement glitch • Choice item lock glitch Toxic sure-hit glitch • Rollout storage glitch • Party item offset glitch Generation IX Glitches Glitch effects Game freeze • Glitch battle • Glitch song Gen I only: Glitch screen • TMTRAINER effect • Inverted sprite Gen II only: Glitch dimension Lists Glitches (GO • Mystery Dungeon • TCG GB • Spin-off) Glitch Pokémon (Gen I • Gen II • Gen III • Gen IV • Gen V • Gen VI • Gen VII • Gen VIII) Glitch moves (Gen I) • Glitch types (Gen I • Gen II)

This article is part of Project GlitchDex, a Bulbapedia project that aims to write comprehensive articles on glitches in the Pokémon games.