Saving the princess has never required a whole lot of thinking but all of that is about to change. Mario will really have to use his noggin in this game. Donkey Kong is, of course, up to his old princess snatching tricks again. Being a sporting fellow, Donkey doesn't simply run away with the princess. Instead, he sets up an elaborate maze of keys, platforms, barrels, and ladders that Mario will have to overcome. And who says Donkey Kong doesn't have a heart eh? This game will test your gaming skills as well as your wits. There is no simple climb up to the princess strategy here. There are locked doors that require keys and [P] blocks that need solving. Another interesting feature is that the screen scrolls horizontally too.