This is a great game, it was a long time since I didn't found a game of this type to be fun. It will be exiting to see more content to it on the future, like more combinations of weapons, combination of other items like armors, shoes, shield. And it would be even better to see God Hand more customizable, like specializing it on either do more damange than healing or otherwise. Anyways I'm just giving ideas, for me the game looks very promising!
Hint: attack and defense can't go below 0.