Okay, so Sonic Mario 2 is one of those weird, unofficial NES mashups that somehow exists—like someone threw Sonic into a Mario game and just went with it. You’ve got Mario’s classic platforming, but with Sonic’s speed and some janky physics that make the jumps feel off at first. The sprites are clearly hacked together, with Sonic’s awkwardly big head on Mario’s tiny body, but there’s a weird charm to it.

First level drops you into a Green Hill Zone knockoff with Mario’s brick blocks everywhere. You’ll bounce off enemies like in Mario, but the momentum feels slippery, like Sonic’s momentum physics half-worked. It’s not great, but if you grew up with bootleg cartridges, you might get a kick out of the sheer absurdity. The music’s a garbled mess of both franchises, which is either hilarious or headache-inducing.

Honestly, it’s more of a novelty than a legit game, but if you’re into weird ROM hacks, this one’s a trip down memory lane—just don’t expect it to play smoothly.