PokeMap is a tool that you can use to edit the map in your own game.
PokeMap
Platform(s): GB Hack Tools
Type: Map Editing
Compatible with: Pokemon Red, Blue
Supported OS: Windows
Download Pokemon GB GBC GBA NDS Hack Tools
After bypassing the main title by presisng the Start button, you will get to the intro of Professor Oak’s intro.
If you have some beautiful custom sprites from the others, or you have made them yourself… use this tool and change everything.
When coming to Professor Oak’s laboratory, you have to choose one of three different Pokemon that is available at that time.