Exciiting 3-D underwater battles with spear guns, knives, and sharks.  Includes rules for three different levels of play.  The Basic Rules introduce new players to th egame for quick and easy mayhem.  The Advanced Rules bring in many tactical options with a wider range of troop qualities, armored scuba suits, sea sleds, and more; plus dangerous sea creatures including many species of sharks, as well as octopi, eelsrays, sea snakes, jellyfish, trained war dolphins, and more! The Expert Rules add realistic movement options for using weight belts and bouyancy vests, just watch out for the bends.