The visuals are great, I have no idea how you make it look that good
The enemies keep spawning at the start point, is not a good thing, as it wasn't clear the player needed to go further. I thought it was some kind of roguelike with upgrades at first. Also, the boss fight seems hard because it's almost impossible to dodge some attacks, but it's actually easy because of the amount of healing you receive. Aiming at basic enemies is hard, though, as your bullet is so thin