Play Oni emulator game online in the highest quality available. Oni is a Gameboy game that you can enjoy on Play Emulator. This GB game is the US English version that works in all modern web browsers without downloading. Oni is part of the Arcade Games and Action Games you can play here. PlayEmulator has many online retro games available including related games like Sonic Colors, Sonic Advance 2, and Sonic the Hedgehog & Ashuro.