A good start to a game, with plenty of room for expansion!
I understood the first boss ok and having little issue with it - although a health bar would be nice for the enemy. It took me a while to notice when the damage was taking place.
The second boss I never fully understood how to avoid damage. I could see no indication of when the beams would shoot down from the top. In the end, it seemed being off the ground somehow stopped the beams from where I was? Or maybe it was just luck.
Still - good job on getting this far! It's not easy to balance preparing for exams and game jam's! I wish you all the luck for them.