I definitely appreciate the 69 combo in the header.
anyway, using your health bar as a blade for your scythe is a really good idea. However, I feel like it's missing feedback for when you hit enemies, something like screenshake, or them flashing, a sound. Dashing should send you in the opposite direction IMO, since you're always facing enemies to throw the boomerang. Also, even when my health is at max the bar shows a bit of red, I know how to fix this in unity, let me know if you haven't fixed it already. And I would make the blocks that stop you a different color, they blend in with the background, especially when there's too many enemies on screen.
overall really fun!