Thanks for playing!
The fizzing sound was probably due to the projetiles not being cleaned up properly, so that'll be yet another bug to fix. Jumping is pretty OP, but I see it as being the same as just dodging or running away; it doesn't progress the fight much. I do plan on having some anti-air moves in future, though, so it'll only be OP for these first couple of fights before it becomes something that gets punished.