Really fun, brilliant concept, but there is an issue that I've found. I'm not sure if it's like this on other puzzles, but in Hamlet (specifically the first puzzle since that's what I'm currently working on), the white indicator lines are WAAAAAAAY off from the actual pieces, which presents a bit of trouble when trying to solve puzzles. Not only that, but the layering of some of the pieces aren't that great. Still a good game. I also didn't receive any pre-registration items.