Great game! I love the mechanic of calling back your fireball to deal damage to shield enemies! The graphics and audio were nice and it was a lot of fun! I think my only complaint is that the controls felt a bit weird. Since the attack button is Z, I end up using the arrow keys so that my left hand can attack. Having Space as the jump key feels awkward since it's really close to Z, so having the Up arrow for jump would have been nicer in my opinion
Otherwise, really great job!