What I liked about this Game:

• I like the water gradient that goes from dark blue at the ocean floor to white at the surface
• The torpedoes and scrap make for a fun loop of dodging projectiles while trying to collect the scrap.

Areas for Improvement:

• The effect of the torpedoes and the scrap is not immediately evident.
• Something that could have helped is an arrow pointing to the left above the oxygen bar that has its length adjust to match the rate of oxygen loss.
  • So the line would get smaller when you pick up scrap and longer when you get hit by torpedoes.
  • This would have made it clear that the torpedoes/scrap was affecting your oxygen loss rate.