Great idea for the game jam! Admittedly pretty frustrating, but it was still a solid concept with some fun levels. Couple things did bug me though.
First, the burst movement was difficult to gauge. This made it unclear if I was going to narrowly dodge a group of flames or just lunge to my death.
Second, adding a series of enemies before the boss felt a little annoying. I had to do a lot of strategic waiting when facing those enemies, which was frustrating when I really just wanted to see the finale.
That being said, the concept, enemy variety and overall level design made for a cool experience. If you plan on updating it, I'd gladly check it out!