Play Sonic & Knuckles emulator game online in the highest quality available. Sonic & Knuckles is a Sega Genesis game that you can enjoy on Play Emulator. This SEGA game is the US English version that works in all modern web browsers without downloading. Sonic & Knuckles is part of the Sonic Games, Arcade Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Sonic Mania Edition, Sonic Advance 3, and Sonic the Hedgehog 3.