Over the last few months, rumors have suggested that Nintendo Switch Online subscribers would gain access to games that originally released on Game Boy and Game Boy Advance. Those rumors seem to have gained a lot more steam, as Nintendo-developed emulators have apparently been discovered for the system. According to Twitter user @Trashbandatcoot, four files were leaked to 4chan, including a Game Boy emulator with the codename “Hiyoko” and a GBA emulator going by “Sloop.” The emulators were seemingly created by NERD, which stands for Nintendo European Research & Development, a team that has handled other emulators used on Switch.

…called Sloop, and the 7z archive is called Hiyoko, which is a Game Boy emulator, with all Game Boy games being separate applications. These emulators are developed by NERD (Nintendo Europe Research & Development), and are both functional, albeit with a few bugs. (2/?) pic.twitter.com/RRUAVvz2BX