Hey awesome game! Had a lot fun playing it. I think I died with 7 remaining?
I like having the limited ammo, and the store/upgrades were pretty unique!
One thing I would love is if you could boost via Shift, a little tough playing on a trackpad otherwise. Also I must have paused via P, and unpaused via Esc - but it doesn't remove the tutorial text! Ha I was so confused trying to remove it.
Great job!