I just got a TG-16 with CD unit, a kick boxing game and Keith Courage for about 80 bucks after some trades . I'm a newbie when it comes to the Turbografx, but I want to know what games I can play on it. I've heard things about system cards and the like, but don't know too much about them. I'd like to be able to play Duo games on the system, is that possible?? Any suggestions about the system or games that I should get would be greatly appreciated. Thanks.