Nintendo has intensified its campaign against Nintendo Switch emulation, filing DMCA takedown notices with GitHub that resulted in the removal of more than 400 repositories linked to the emulators Suyu, Skyline and Yuzu. The move continues a pattern of aggressive legal and legal-adjacent pressure the company has applied to emulator developers, and underlines its determination to close down projects it views as facilitating piracy, even when they are open-source and community-maintained.

Nintendo argues these emulators bypass its "technological protection measures", the encryption built into Switch consoles and game files, by using unauthorised cryptographic keys to decrypt pirated ROMs. Its takedown notice cites a 2024 settlement in which Yuzu developer Tropic Haze paid $2.4 million and agreed to halt development, after which the code was forked into the successor project Suyu; it also references a default judgment against streamer Jesse "EveryGameGuru" Keighin. Neither case went to trial. Nintendo previously pressured the Skyline emulator team into shutting down in 2023 and reached an out-of-court deal to take Ryujinx offline, and has separately pursued piracy-related lawsuits, including a $4.5 million claim against a Reddit moderator.