Ever wished you could play as Sonic, Tails, and Knuckles all at once in the classic Genesis games? That’s basically what Sonic Classic Heroes does—it’s a romhack that lets you swap between all three characters on the fly, even in the original Sonic 1 and 2 levels. Tails can finally fly in Green Hill Zone, Knuckles can climb where he wasn’t meant to, and Sonic… well, he’s still fast, obviously.

It’s chaotic in the best way—imagine carrying all three characters’ abilities into boss fights or finding weird shortcuts because Knuckles can suddenly break walls in Chemical Plant. The physics feel a little janky at first (Tails’ flight is kinda overpowered, ngl), but once you get used to it, tearing through zones with this much freedom is a blast. Just don’t be surprised if you soft-lock yourself by gliding somewhere the level wasn’t designed for.

If you’ve played the classics to death, this mod shakes things up enough to make them feel new again.