Cool stuff, the character moves pretty well and the fire effects are really good ! Great job for the juice !
In terms of gameplay, I think it is a bit more frutrating than it could be, mostly because of the targeting system that is not forgiving. If you anticipate too much and press the attack button too early, you die. I suggest to try and add a bit more control in the air, by allowing to change direction once in the air for example, and give a bit more range to the propulsion.