After defeating the foreign submarines you go behind enemy lines for war! You are running a nuclear attack submarine armed with Mark IV torpedoes and EMP mines. Overrun the enemy submarines and make the seas safe for your surface fleet. Over and out! Build your own game like this at Pulado.com. Press CTRL or Z to fire primary weapon. Press X to fire secondary weapon. Press Space to Jump or switch Turrets. Use the right, left, up, and down keys to move around.