Hey, thanks for your feedback, I noticed this when I was playing it personally. It's the way the bullets have been programmed, and they are affected by the rotation of the submarine.
Basically because the submarine is moving, the angle between it and the mouse is changed, and since at the moment I have been using the position and angle of the submarine in an equation which uses trigonometry to determine the angle between it and the mouse, that all gets messed up.
I will be able to have a look at this soon, however Sub-Vival itself is in the pipelines at the moment whilst we begin development on an iOS game.
Also, forgot to mention. Please fix the glitch so that the mute button stays muted when the game resets. When I finish a game with the 3 letters, and go to the place with the words suggestions, the music starts back even though I muted it. Kinda annoying.
 "Transmission"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Me and the key 3"){kind=icon}
 "A small talk at the back of beyond"){kind=icon}
 "Mystery IQ Test"){kind=icon}
 "no-one has to die."){kind=icon}
 "Ghost Hacker 2"){kind=icon}
 "THE HIVE CHAT"){kind=icon}
 "Sub-Vival"){kind=icon}
 "Free Rider 3"){kind=icon}
 "8BitMMO (Construction Sandbox)"){kind=icon}
 "Folds -- Origami Game"){kind=icon}
 "Word Find"){kind=icon}
 "Caravaneer"){kind=icon}
 "Bowmaster Prelude"){kind=icon}
No.