Fierce terrorists are launching unrelenting assaults from their underwater bases, and only one person can stop them - you. With one or two-player simultaneous blasting action on offer, players must take their attack subs into the thick of the action and wipe out the subversive threat with heavy arms. It won't be easy, as there are literally hundreds of enemies to overcome. Fortunately, the subs can acquire bigger and better weapons as the game progresses, including surface-to-air missiles, depth charges, floating mines and supersonic torpedoes - which helps even the odds. The lushly detailed graphics include underwater multi-plane backgrounds and the furious fighting will make even side-scrolling shoot-em-up experts tremble . . .