Quote Originally Posted by Tanooki View Post
They don't own a damn thing with any of the games and all one would have to do is remove the 'licensed by nintendo' blip on the title/pre-title screens and you'd be good to go if your 'emulator' was made honestly not using legal old Nintendo docs to make the emulator.
All NES and SuperNES patents are now expired and are in the public domain. So it doesn't matter if they have access to official Nintendo documentation on the inner-workings of said consoles.