Unbelievably hard and manic game, but it has infinite continues and an easy password system so you can surely see every level if you're dedicated enough. The level 20 boss rush was as much as I could handle. I really admire how this game has an absurd amount of moves for a 16-bit action game. If you're a hardcore fan of run and gun games then this is probably a masterpiece. This is also a pretty excellent display of the Genesis's visual prowess, with lots of fast, smooth animation and a lot of stuff onscreen for a game that's virtually lag free.