Play Sonic 2 SMTP Online

Man, Sonic 2 SMTP hits different. It’s that classic Genesis speed rush you remember, but someone snuck in and remixed the whole thing when you weren’t looking. Same blue blur, same killer soundtrack, but now the levels twist in ways that’ll make you double-take—like finding a secret door in your childhood home.

First thing you’ll notice? The physics feel just slightly off in the best way. That spin dash you’ve muscle-memorized for decades suddenly has new weight to it, and those corkscrews in Chemical Plant Zone? They spit you out somewhere unexpected. I won’t spoil the surprises, but let’s just say there’s a reason speedrunners are losing their minds over this mod.

Perfect for when you want that 16-bit adrenaline hit but need your reflexes to actually work for it again. Grab your wired controller and try not to grin when you hit the first new alternate path.