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If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
There is an underwater war going on and you have to win it in your submarine! Stay aware of the sonar signal and destroy all the enemy submarines that come in your way. Just make sure you do not crash or get hit by projectiles and explosive barrels. Collect health and fuel power ups and improve your score by getting coins and finishing the levels very fast. Complete all eight levels! Have a lot of fun!
Use your arrow keys to drive and your space bar to shoot.