The Retro Duo is a handheld game console developed by Retro-Bit and distributed by Innex, Inc. It plays game cartridges for the Nintendo Entertainment System and Super Nintendo Entertainment System. It plays North American, European and Japanese games and has the highest compatibility of any other clone system. S-video is compatible when playing SNES games. The console is not licensed by Nintendo and it’s not fully compatible with every game released for the two game systems; however, the majority of games function properly. While it has only been released in Canada and the United States, it can still be used in Europe and Japan with a power plug adapter. The console is compatible with official and third party SNES controllers.