USOs stands for unidentified submerged objects. The object of the game is to save the world and defend your navy battle ship against a wave of alien flying saucers that have been hiding in the ocean for years.

Date added: August 3 2010

Use the arrow keys to move the gun around and press the space bar to fire

USO  usos  ufo  flyingsaucer  space  ships  navy  army  war  invasion  ocean  Alien  attack