Fun, very fun. I really like how the walls close in. Puts a little bit of pressure on. After I looked at what the Pharaoh's eye was supposed to be, I was able to put the puzzle together. However, I never would have known I could flip the pieces if I hadn't read your post. You need to explain that. Also, after completing the puzzle once, I didn't really feel like going back to complete the same puzzle. Maybe you could add different puzzles.