Enemy submarine units are trying to get through the Aquatory! It is your job to stop them! Use your A and D keys to move and your mouse to fire. When you have upgraded weapons, use your W and S to switch weapons. Hit your space bar to enter the upgrade screen. R to reload. See if you can hit the subs on the head and destroy them with a single shot. Collect all 3 stars in each wave. Can you save The Aquatory?