RetroGEN

Well this would have been fan-freakin-tastic ten to fifteen years ago.  Course it also would have cost a small fortune and been a legal suit.  The RetroGEN Genesis to SNES adapter by Retro-Bit is a neat self explanatory idea.  Play your Sega Genesis games on your Super Nintendo.  Cool concept right?  Users report minor sound quality issues and compatibility issues like Virtua Racing and Comix Zone. Honestly that kind of stuff can be excepted.  There are also a few reports of video quality issues, mostly scrolling.  In fact according to the reports only a handful of games work flawlessly. Amazon has marked this unit down from $25.00 to $21.00 so take this product for what it really is....neat, fun and cheap!
-kaokensho