Play Chip McCallahan in Sonic the Hedgehog Online

Chip McCallahan in Sonic the Hedgehog was a Sega Genesis release, though it never saw an official launch; it's one of those obscure, unfinished prototypes that circulated among collectors. Developed by an unknown team, it feels like a strange, unofficial take on the Sonic universe, something you'd stumble across in a late-night ROM dive rather than on a store shelf.

You control Chip, an awkward human character who moves through classic Sonic levels with a floaty, imprecise jump and a clumsy dash attack. The goal is simply to reach the end of each stage, but Chip's sluggish controls and unusual physics make even basic platforming a challenge. You'll spend a lot of time adjusting to his momentum, trying to chain moves together without slipping off edges or misjudging leaps. It's a clumsy, unpredictable experience that turns speedy Sonic stages into slow, careful tests of patience. Playing it feels like guiding a stranger through a world that wasn't built for them.