I enjoy games like these. I was getting a little frustrated though because I don't know what was giving me a piece of the door and what wasn't. I tried it twice to see if I could see a pattern but I'm still not sure. I lost both times. I think there are supposed to be 4 levels but I always lost at the first door. I thought it was you had to connect 4 and they have to be different colors but that didn't hold up later.