Game Description:As a commander of top-secret super modern submarine, you are ordered to get through enemy defense and to destroy as many of his ships and airplanes as possible in the middle of this territory. Do not hit civilian targets! You get a positive score when you destroy an enemy target and a negative score when you destroy a civilian one. Do not fire too quickly. Torpedo indicator shows progress of torpedo reloading. There are a total of ten ranks to achieve as commander.