I really liked the art and atmosphere. It is confusing that you can't really tell how much damage an enemy is doing. Quickly the strategic depth runs out, since there is no way to recover any damage taken. If the enemy attacks, it seems like you have to defend, or else you will quickly die. There was also a bug where one of the red center squares turned black and stayed that way even after rolling.
Also, don't forget a way to quit the application.