I bought a DKC2 off ebay which was listed as working. When I got the cart I loaded it into my snes and diddy's sprite doesn't appear in the overworld.
When I got it there was a save file already on the cart, but when I tried loading it the game crashed and the save file disappeared. Could this be as simple as replacing the battery or is there more to it? I'll likely get a refund from the seller but I would rather keep it and see if it can be repaired.