Second type glitch: Difference between revisions

The first discovered method of the glitch involves pressing the select button on the thirteenth item, exiting the menu using B,B and then swapping the thirteenth option with the first Pokémon by using the A button. This is possible either through the use of the Pokémon menu in [[Pokémon battle|battle]], or the [[Pokémon Day Care|Day-Care Center]] on {{rt|5|Kanto}}. Coincidentally, one of the altered Pokémon flags forces the player to 'see' Pokémon No. 152. A 152nd entry is possible in the Pokédex due to the fact that there are 19 "seen" and "own" Pokédex flags, and a unique Pokémon is stored for every bit. Due to technical limitations, this means that the game must store a minimum of 152 (19*8) Pokémon. In the Japanese versions, this appears as Missingno. (けつばん) but it appears as either {{p|Scyther}} or {{p|Farfetch'd}} in the English localizations. The reason for this is unknown.  

An alternative method changes different Pokédex flags, but does not activate a 152nd entry in the Pokédex. The player must first press the select button on the fourteenth item, exit the menu using B,B and then swap the fourteenth option with the first Pokémon by using the A button through the Day-Care Center. The Pokémon will then turn into an "A" (the Japanese version of [['M (00)]]) with a glitchy nickname. The player should then ask to receive the "A" from the Day-Care Center, and it will have "grown" to level 1. It should appear in the player's party as the second Pokémon. After swapping the fourteenth item with the first Pokémon through the Day-Care Center again, the player will this time receive a Pokémon depending on the second type of the original Pokémon before exploiting the glitch, while keeping the level 1 "A".