Nice game! The limitation of ammo and life makes you hunt for supply from time to time, and this creates tension for the gameplay. Nice art-style too :D
Thanks! I decided to limit the ammo at the last minute to make it more difficult. Early on I was going to have a mechanic where you were always running out of oxygen and have to keep replenishing to really make you feel like you're against the clock. I may re-visit that idea in another jam.