Play Sonic And Knuckles & Sonic 1 emulator game online in the highest quality available. Sonic And Knuckles & Sonic 1 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 And Knuckles & Sonic 1 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 Colors, Sonic Advance 2, and Sonic the Hedgehog & Ashuro.