I liked the general concept, and the game plays fairly well. My biggest gripe is with the camera. It's not a very good angle. It makes it hard to see anything around you. Other than that, the game feels fine. Graphically, the game looks really good, but the few objects that have no materials really stand out in the otherwise beautiful game. It's almost a zero-time operation to drag and drop some matte black materials onto those, and would make your game look so much better.
One other somewhat bewildering note, the first time the boss clapped his hands together on me, I took no damage and he took 5000. Not really sure how that happened.