This is looking really cool! I think the concept does not shine through enough though. I could not really tell things changing when my health dropped down really low compared to having a lot of it. The movement is not grid-based, which is cool but makes me wish I could go diagonally. Judging hitboxes is really hard, I think they could be adjusted, because most of the time I could not tell what attacks would hit me or my enemies.
But all in all, I liked the game! I think you should continue working on it, it really does have the potensh.