A few months back, after looking at reviews for the Retro Duo Portable and the SupaBoy, I picked up a SupaBoy from a Canadian website that was slightly cheaper than eBay. Besides some audio problems like buzzing from the speakers and headphones, and not being able to handle the sound from my Super Gameboy at full volume, I'm okay with my purchase. Thanks to my SupaBoy, I'm playing Super Famicom games that I didn't even know EXISTED when I was a kid! The problem comes when I try to play any OTHER games. The Retro Duo Portable has adapters that play NES, Genesis/Mega Drive, and Gameboy Advance games. Problem is, none of those adapters work on a Supaboy, unless you plug it into a TV, and from what I can see of a Gamester 81 video comparing the 2 portable SNES clones, it uses the audio from the SupaBoy when you plug the Retro Bit NES adapter up to a TV. Are there ANY adapters out there that would work out of the box on a SupaBoy, without having to plug it into a TV? I saw a video from a Japanese reviewer that said, through badly subtitled English, '...on a SupaBoy'. Not 'works on a SupaBoy', or 'compatible on a SupaBoy, just a black space, then 'on a SupaBoy.' They were talking abut Game Joy adapters, for the Pokefami DX, which from what I've seen online, has more problems than my SupaBoy. Does anyone have the Japanese Game Joy Famicom or Mega Drive adapters, and can see if they would let me play Famicom or Genesis games on my SupaBoy? If not, are there adapters that WILL work?