The visuals are insane. The health bar being the character's limbs is a nice concept. Tutorial pop-ups are understandable. Boss fight was cool and fun af.
The normal keybinds are pretty weird, but it's a good things there is keybind configuration. I encountered a bug there, tho. When I keybind a button that's already assigned to something else, it turns to "No Button" and stays like that. And yeah, the controls with the "No Button" won't work.
The regenerating rocks in the boss fight could've been the standard for the rest of the game. It would remove the need for a refill button and still be balanced. I personally think passive refill is even better.
All in all, neat game. Could use a few more improvements, but is heading in the right direction. Goodluck on next game.