Vibe-coded Nintendo ports are spreading fast, and Nintendo is just starting to notice

AI-assisted decompilation tools, turbocharged by the latest Claude update, have produced a wave of unofficial ports over the past few weeks — and Nintendo titles are now firmly in the mix. Metroid Prime, Super Mario Sunshine, the 3DS version of Majora's Mask, Super Mario Odyssey, Super Smash Bros. Ultimate, and Mario Kart 8 Deluxe have all surfaced as native PC ports, shared across Reddit's r/decomps community and X. Nintendo hasn't moved on most of them yet, but the situation is clearly escalating.

The one project that did catch Nintendo's attention is Oliver Sauter's Claude-coded multiplayer browser port of Super Mario 64. Nintendo's 1996 platformer is arguably the most symbolically loaded target the company could pick, and the post on X has been partially disabled following a copyright report from the rights holder — though the actual webpage hosting the port remains live. The other ports, for now, appear to be flying under the radar, partly because several haven't been publicly released yet, giving Nintendo nothing concrete to issue a takedown against.

For the ports that are live, distribution channel seems to be the deciding factor. The Super Mario Odyssey PC port, for instance, is only available through Discord — a platform Nintendo has historically struggled to police effectively compared to public websites or storefronts. That friction buys these projects time, but it's unlikely to stop Nintendo's legal team indefinitely. The company has one of the most aggressive IP enforcement records in the games industry, having pursued emulator projects, ROM sites, and fan games with cease-and-desist letters and lawsuits for decades.

The broader wave of vibe-coded ports — covering Call of Duty: Black Ops, Halo: CE, and GTA: Vice City alongside the Nintendo titles — reflects how dramatically AI-assisted decompilation has lowered the technical barrier for this kind of work. Whether Nintendo moves quickly or methodically, the ports that are already circulating are unlikely to disappear quietly, and the community seems well aware that the clock is ticking.