I just opened my sealed copy of mk2 for the sega genesis on began to play it for the first time. It seemed to play perfect encept a red pixel was on the press start p2 thing. But as I got farther in the game there was invisability issues with characters that don't turn invisable, even mine. Then both at once invisable. It froze a bit later, then I took it out and blew on it good. It froze twice more this time and even faster. Does the nomad have any issues with certain games? or is there nothing I can do about this?