I recently bought a copy of Impossible Mission II for the NES (the version put out by American Video). The label and cartridge appear totally geniune, but when I put it in my system to play it, it's an entirely different game - RBI Baseball by Tengen! I even played it, this baseball game seems to work OK. But that is the only game on this cart as far as I can tell.
I really don't know what to make of this