Old school shoot em up arcade game. You control the battleship at the top of the screen and your job is to destroy wave after wave of enemy subs. Your battleship will take 3 hits before it sinks to the bottom of the ocean, and you do have 3 battleships in your fleet. Lookout for the friendly fireboat who will quench all fires on your ship at the end of each level. Extra life at every 1000 points.