The past few weeks have seen an unquantifiable number of emulators, “native” PC ports, bizarre Minecraft meets Elden Ring mash-up mods, and web browser ports of games suddenly released online, which have been linked to the latest Claude update, Opus 5.5. Yet, while vibe-coding aficionados have been gleefully decompiling and creating ports of games such as Call of Duty: Black Ops, Halo: CE, and Grand Theft Auto: Vice City, Claude-assisted Nintendo ports of games haven’t been making headlines.
However, while there seem to be fewer examples of AI-decompiled Nintendo ports than Xbox and PlayStation ports, there are still some examples—it’s just that people are being a little bit craftier about advertising them. An understandable tactic, considering Nintendo’s famously litigious history.
For instance, you may have seen dozens of recent examples of non-Nintendo games suddenly being ported to the Nintendo Switch. Obviously, these aren’t Nintendo IPs, so Nintendo isn’t going after those. Several Nintendo-owned properties are being decompiled and ported to PC, though, such as Metroid Prime, Super Mario Sunshine, the Nintendo 3DS version of Majora’s Mask, and, perhaps most worryingly (at least for Nintendo), Super Mario Odyssey. Likewise, native PC ports of Super Smash Bros. Ultimate and Mario Kart 8 Deluxe are also making the rounds on X.
While most of these projects have yet to draw the ire of Nintendo’s legal team, at least one vibe-coded project has seemingly caught their attention: a web browser port of Super Mario 64. Oliver Sauter’s Claude-coded multiplayer version of Nintendo’s 1996 platformer has been partially “disabled in response to a report by the copyright owner” on X, although the webpage housing the port is still up.
MAN WHAT THE FUCK 😭😭😭😭 pic.twitter.com/9w1LKekJHk
— TEMZY ✞ (@imtemzy) October 12, 2026
So why was this one flagged, while all these other AI-assisted ports of much more recent Nintendo titles remain untouched? Well, for a start, some haven’t even been released yet, so there’s nothing that Nintendo can issue a takedown notice against. However, regarding the ones that have been released, the determining factor seems to be where you can download them.
For example, the “native” PC release of Super Mario Odyssey can only be downloaded through Discord. Nintendo has successfully targeted and subpoenaed Discord servers housing Nintendo emulators and ROMs in the past, but the process isn’t as swift as simply issuing a takedown notice against an X post.
Then there are all of the AI-assisted ports housed on GitHub, which bring us to the Nintendo Switch emulator Suyu. In August 2026, Nintendo successfully wiped hundreds of Suyu forks from GitHub. Nintendo seemingly used its successful lawsuit against the Yuzu emulator as its legal justification, as Suyu is based on a fork of Yuzu named Eden.
However, while the forks of Suyu were purged, Suyu itself remains on GitHub. This is important because the Claude-assisted v0.0.4 of Suyu was released last month, and it allows users to “export the CPU code of their games into recompiled C, which could be used to aid porting or reverse engineering of Switch games.”
Smash Ultimate is getting a native PC port no emulator required.
The open-source project ssbu-recomp uses static recompilation to turn Super Smash Bros. Ultimate into a native Windows program.
– Runs full 1v1 matches at 59–60 FPS
– Vulkan renderer with OpenGL fallback
-… https://t.co/AEVEhCBVcs pic.twitter.com/hyWnTGa9WO— Aman (@mdaman010) October 12, 2026
In short, the majority of these decompiled Nintendo ports owe their existence to Suyu v0.0.4. But if Suyu is based on Eden, which is a fork of Yuzu, and Nintendo justified its previous legal takedowns against Suyu on its legal win against Yuzu… then how has the GitHub for Suyu v0.0.4 not already been nuked from orbit by Nintendo’s legal team?
As the Suyu team explains in a lengthy “Legal Notice” on its GitHub, they believe that the 2024 lawsuit against Tropic Haze LLC, the company behind the Yuzu emulator, doesn’t apply to them: “The injunction binds the named parties and those acting in active concert with them. It does not rewrite the DMCA or convert the act of writing an emulator that requires user-supplied keys into a strict-liability offence.”
I’m not a legal expert, so I don’t know if Suyu’s defense is as airtight as they believe it is. Still, if it is, maybe that explains why Nintendo has yet to successfully remove Suyu and, by extension, its decompiled Nintendo ports from the internet.
As far as the non-Suyu-forked ports of Nintendo games are concerned, perhaps that has more to do with GitHub’s own stance on DMCA claims. While GitHub reported a “record” number of DMCA takedowns in 2025, it maintains that it errs on the side of its developers, as GitHub promises that it continues to “safeguard developer interests against overreaching and ambiguous takedown requests.”
Maybe this means that all of these Claude-assisted Nintendo ports are simply being scrutinized by GitHub’s legal team, but I’d wager that actually means that GitHub is currently being inundated with DMCA notices and has a bit of a backlog to work through as a result.