Co-op has been a staple feature of many Sonic games for decades now. These examples are the best of the bunch.

Nights into Dreams was the unofficial headliner for the SEGA Saturn, as the console lacked a definitive Sonic game ... games on the Sega Genesis. By using the original’s gameplay as a baseline ...

appealing to fans of pixel art and classic Sonic gameplay. The game features new playable characters Fang the Sniper and Tunnel the Mole, with unique paths for each. Sonic Galactic's second demo ...