A small command line tool for estimating usage of Game Boy (and other supported GBDK platform) ROMs from map files, .noi files, binary ROMs and more ...
And just like any other game in the series, it uses the Japanese ROM for the main part. The options menu and manual are available in Japanese, English, French, German, Italian, and Spanish.
Following a copyright lawsuit by Nintendo's US subsidiary, developer Tropical Haze removed the Switch emulator Yuzu and the 3DS emulator Citra ... mechanisms for Switch games with its emulator.
The open source Nintendo Switch emulator for PC, Ryujinx ... for those keen on the possibility of running Switch games (that they've purchased) on their PC.