Nice little game, although a litte unbalanced. I reached a point where I didn't have enough health to beat the enemies I needed to and not enough keys to reach areas in previous floors where I could access powerups. As there's no character levelling at all, the only reason beyond progress to beat enemies i for gold. Which is almost exclusively consumed by a greedy statue, which demands upwards of 200 coins for a measly 150 health after using it a few times. Even after pouring all my money into heath, I still had no hope of progress. I also felt I leanred nothing that would help me get further next time.
Adding some skill element to the combat (it's basically a numbers game at present) could improve things a little. Overall worth playing though.