So, I picked up a super cheap complete copy of super monaco GP for the genesis about a week ago. The box is allright, the manual's okay, but the cart itself is in amazing outside condition. Not a single scratch or blemish. However, when I plug it into the genesis, It refuses to work. It doesn't even get to the "produced and licensed by SEGA enterprises" screen. I've cleaned it with alcohol multiple times, yet it still doesn't work. Is there anything I can do, or is it a goner and best left that way?