nice job! the artwork is really cool, I like the sketch, hand-drawn style! The music fits pretty well too! it's a little buggy with the player collisions (at one point I got flung up into the sky when the enemy ran into me) so I would recommend adding some knock back to the player. Also, the description of your game says "If your health bar is full you die so the less heath the better" but I think a better way of putting it is "the more damage you take, the more ammo you have. Too much ammo and you die" or something like that. Still fits the theme well, just explained a little more clearly for the player. Overall, good job!
I'd appreciate it if you could play/rate my game as well! :)