Love the idea and the mechanics. Once I figured them out I really felt like I was raiding a museum. it was a little buggy at time and you could even keep playing after you lost. The difficulty was the most noticable. It was extremely hard. maybe next time you could implement levels a ramp up the difficulty a little slower. On a more minor note the text pop ups on the bottom would get in the way of seeing below so those should be moved somewhere else. All in all great job!