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

After Sonic Mania finished development in 2018 ... Penny's Big Breakaway is a 3D platformer that puts you in the shoes of a street performer named, well, Penny, who's on the lam from swarms ...

Sonic Galactic is a fan game reminiscent of Sonic Mania, appealing to fans of pixel art and classic Sonic gameplay. The game features new playable characters Fang the Sniper and Tunnel the Mole ...