Really enjoyed it, the first game I wanted to replay after I finished. I didn't realize that it was a "spot the difference" game until after clicking a few items and losing some HP. Being unprepared upped the challenge some, but it didn't feel like that was the intention (i.e. I think the challenge was supposed to come from the level of clutter), so I think some indication of what I was supposed to do in the first half would have been good.