|This article is a summary page for different variations of a glitches, etc. when talked about as a whole.
In the first generation of handheld Pokémon games, a total of three complete, but unused maps exist within the game, which are slightly different versions of other map locations such as the PokéMart within Cinnibar Island.
The alternative map locations are almost identical to the respective and final map location in the sense that they are visually the same, share the same Town Map name, and have NPCs whom share the same map events.
For unknown reasons the default music between these maps are different. For example, the default music for the burgled house in Cerulean City is Cerulean City's theme in the final version, although the alternative and unused version is the same apart from the fact that it plays Mt Moon's theme instead.
The dokokashira door glitch can be used in Pokémon Red and Green, such that the player is taken to a map identifier of either 45, 4B or AD. Below is a table, comparing the details of the unused alternative maps when compared to their corresponding final map. Additionally, players may enter the Gameshark codes 01XXDDD2 (01XX5ED3 in Pokémon Red and Blue) and activate them when entering through a door, or immediately after using the move Fly.