Good jam submission! I really liked the dying mechanic. I had actually thought about doing something like that for my own submission but eventually decided against it because I wasn't sure how to implement it (definitely was overthinking on my part). But I think you did it really well!
By the way, I came across a slight bug. The floating platform seems can knock you into the ground where you get stuck if you're standing directly underneath it. The one by the boss, unsure about the other one.
Great work though!