Great game, just a few things.
I dunno if it's just me, but the health bar was really confusing. I couldn't tell that the armor was going back, I thought the HP was increasing. Having the score pop up saying +10 was also confusing, and I thought that me attacking him was just healing him. So I ran around until I realized I was stripping his armor.
If you would have the pop up amounts show health lost and gained, it would be a lot less confusing. But that might just be me.
Good game.