So she replied back to me and said it says made in Japan on the Super Mario RPG cart. Does this mean it will not work at all on my Retro Duo System? I heard that you can power off and on really fast a few times to get it to work? Or you can do this with tape: http://nfggames.com/forum2/index.php?topic=1382.0 If the game or none of this works on the Retro Duo, then they need to change the description on every site that sells these! All of them state that it plays all Lockout Chip games, including Super Mario RPG. I just shelled out a hundred bucks for the system and game!