This can play all three systems games: SNES,NES, and GEN. It's literally brand new, I opened it once and tried it but only had NES games a Super Nintendo game which I have regular consoles for and will use. It comes with everything you need to use including controllers which are actually wireless and work for all three consoles.
I bought it for $80 and because it's literally brand new I'm asking $75. Contact me if you have any questions.
Also check out my other adds on some old school games for Sega (works with this system), gameboy games, and snes super gameboy cartridge. As well as SNES controllers.