Really cool and fun game! I had fun and passed the whole game.
I like you art style and especially the main character, it has some nice vibe!
Music is pretty great, it keep me playing game, really enjoyable.
Controls are smooth but sometimes I didn't hit double jump with no clear reason. Shooting is really fun to do :D
I would improve enemie AI, I felt that rushing me is not necessary. Just walking around enemies as moving obstacles would be enough for this kind of precise platformer. Maybe just limit ammo instead of that?
It was good idea to drop life from enemies cuz otherwise I wouldn't make it.
Congratulations on your submission!