I like the fact that you have to choose between bullets and health, in general, a good small polished game, great job ヾ(•ω•`)o
The only downside I see to the game, is that, because of the black and white and pixel esthetic, I usually get lost between all the bullets, and enemies, and I can't find my character into the game. But I guess that's a limitation of the esthetic you used.