Take the controls of a top-secret subfoil prototype known as TIGERSHARK in this seafaring battlefest for the PlayStation. The Red Menace returns, setting off a series of major earthquakes that flood Japan. As the Russian army moves to gain control of the besieged island nation, you move your TIGERSHARK into position and wage war against them. Non-stop underwater dogfighting ensues, and you must utilize all your piloting and shooting skills in order to beat them. TIGERSHARK, 'the ultimate war machine,' is under your command.