The game is clear, very fun to collect souls and stack upgrades, and the art is very good!
The only thing I missed was that a frame in the enemies animation where they anticipate the attack. Sometimes I thought I was far away enough from a big guy and then the next frame I was dead. As balancing goes, in most levels I made my way to the bottom right corner and then pretty much held the attack button down for easy kills (I went for Attack+ every time I could)