Pokemon Prism

Pokemon Prism GBC

Download Pre-Patched Pokemon Prism GBC Rom

  • Creator: Koolboyman
  • Version: Version 0.94 Build 0237
  • Hack of: Crystal
  • Updated: July 18, 2020

Pokemon Prism is a GBC Rom Hack by Koolboyman based on Pokemon Crystal. And it is now available to download. It was last updated on July 18, 2020.

Also, be sure to check out Pokemon Emerald Multiplayer


This is the story of Prism, the son/daughter of Lance. After playing in his uncle’s mine cart in an unidentified region, it somehow spins out of control and ends up in the region of Naljo. Naljo is a developing region bent on the dream of purist industrialization. After finding a lost Larvitar, Prism must collect the eight Naljo badges while fixing all that is wrong with this corrupted region.


  • New region of Naljo (bigger than Johto)
  • Return of the region of Rijon
  • 252 Pokemon to find coming from all four generations
  • New music
  • New types: Fairy, Gas, and Sound
  • New TM/HM set
  • Gold Token system – save them up and get something good. Can you find all 80 of them?
  • Four crafting Skills
  • Side-Scrolling areas
  • New mini-games



  • Major bugfix release, most known bugs fixed
  • Battle Tower working
  • Shiny apricorns at random in the overworld
  • Shiny Balls preserve the caught Pokemon’s ability
  • Several sprite/picture updates
  • Debug features to reset the clock at the start
  • RTC works properly
  • Moveset reviews and changes
  • The project belongs to RainbowDevs


  • Various TMs fixed
  • Various Pokémon fixed
  • Battle Tower should work now (not really)
  • Hall of fame crash fixed

Useful Stuff



Koolboyman, RainbowDevs