The fact that you can sometimes see some of the sides peak out from the top, hinting at which way you need to move it, is a stellar touch that removes what would otherwise be frustrating in trying to find the right side. I like the fact that you can shift two dice at once, although sometimes (but not too often) I'd try to move a dice and get nothing. In a later version, maybe make the difficulty grow a bit faster. All in all, very fun!