A lawyer for Nintendo talked about how emulators are "technically" legal but gave examples of how they can violate the law.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Koji Nishiura, Nintendo's patent attorney, weighs in on the legality of video game emulators.

Nishiura added that if the emulator also disables security measures like encryption, that could also be considered illegal.