Those mad bastards at Rare managed to pack one of the funniest NES co-op experiences and one of the worst, most grueling NES single player adventures into the same game. Do yourself a favor and just hang out with a friend and be silly little ball-gobbling snakes in the first four or so levels. You don't have to subject yourself to this game's ice level physics or fight the giant foot on the moon. It's not worth it, I promise.