>>713593907Not quite. There's actually nothing illegal about selling an emulator so long as you don't use any proprietary software/hardware. If they wanna take donations for their work, technically, Nintendo can't stop them.
What actually gave Nintendo an in was that emulator devs have an extreme tendency to also distribute ROMs on the side. Nintendo has managed to gather evidence of this and this is what ultimatelly allowed them to shut them down. So emulator devs are very often retarded.