Well done on the game! :)
I managed to get to end (though the last part definitely took a few tries haha). I don't know if this was the case, but from attacking an enemy with the melee attack, it seemed that you would be left vulnerable to get hit (I guess unless you managed to speed away by clicking?). I think some effect when hitting an enemy would have been great. At first I honestly couldn't tell if I was doing anything to them at all. I think the projectile was my favorite as I could just shoot up enemies from a distance while dashing away to build it back up.
Once again, awesome job!