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

The best 2D platformers: from Sonic Mania to Celeste, here's what to play - It’s not just Mario: there’s a surprising variety ...

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 ...

Sonic Mania was developed by PagodaWest Games and ... comprised of reminagined Shadow stages from past Sonic games. The two campaigns combine for 15-20 hours of content across over 150 stages ...