List of Pokémon by index number (Generation I): Difference between revisions

In each [[Pokémon games|Pokémon game]] of [[Generation I]], all {{OBP|Pokémon|species}} have an unseen [[index number]] used to identify them in the game's {{wp|Read-only memory|ROM}}. Unlike later [[generation]]s, the Pokémon are far from being in order by their [[National Pokédex]] [[List of Pokémon by National Pokédex number|numbers]], and most [[evolution]] [[List of Pokémon by evolution family|families]] are extremely fragmented. In addition, the [[glitch Pokémon]] [[Missingno.]] permeates the list; all other glitch Pokémon are either located at 00 or after {{p|Victreebel}}. Since {{p|Rhydon}} is index number 001, many glitch Pokémon will become it upon capture, due to the [[Rhydon glitch]].

When connected to a [[Generation II]] game, many of the glitch Pokémon will appear to the other side to be a {{cat|Generation II Pokémon}} and are occasionally tradable. In the list below, the name of the Generation II Pokémon in parentheses after the glitch Pokémon's name is the equivalent Pokémon in the Generation II games. Note that this does not necessarily imply that these are the Pokémon which were deleted from that slot; the conversion of Generation I to Generation II index numbers simply returns garbage data for glitch Pokémon, which happens to correspond to valid Generation II index numbers.