Pokemon Onyx Blue ROM

Pokemon Onyx Blue rom
When focusing on the main objectives, Pokemon Onyx Blue is about 35 Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 60 Hours to obtain 100% completion.

Pokemon Onyx Blue is a GBA Rom Hack by Zatarion based on Pokemon Sapphire in English. It features Mew, Celebi and Jirachi as starter Pokemon, 386 Pokemon to catch, more challenging trainers and Gym leaders, new areas and much more!

You can download the Pokemon Onyx Blue rom from this page and to play the game you need to download the Visualboy Advance Emulator here.

You need to download and install Visual Boy Advance and then load the rom.

For detailed instructions per device, view below.

Download the official Pokemon Onyx Blue ROM in the (USA) version for the Game Boy Advance handheld consoles. To fully utilize a GBA ROM game, use our Cheats, Rom Hacks and GBA Roms sections. You can open the Pokemon Onyx Blue ROM or GBA file by Installing VisualBoyAdvance on Windows, MAC, Linux, Android or IOS/iphone.

Additional Information


Pokemon Onyx Blue is a GBA Rom Hack by Zatarion based on Pokemon Sapphire in English.

Also, be sure to check out Pokemon TurquoiseBlue.


Nothing about the story was changed, truly. You are a trainer who just moved to Little root Town. After setting your on-wall clock, you come down to meet your mom. Both of you talk for a while, then you go out and meet Professor Birch. After receiving your first starter Pokemon, you officially start your Pokemon journey.

In your journey, you will battle and meet many different people with two evil organizations: Team Magma and Team Aqua. These two teams are trying to wake up the ancient power of Groudon and Kyogre – two Legendaries of the land and the sea.


  • Mew, Celebi, and Jirachi are starters
  • 386 Capturable Pokemon. All Pokemon are from Gen I to Gen III. 
  • Many trainers and Gym Leaders are edited to become more challenging than before.
  • Some new areas

File Name

Pokemon Onyx Blue

File Size




Release Date

World: 2015






Game Boy Advance




Rate ROM

[Total: 4 Average: 4.3]