Cool concept. I felt like a bit of a block janitor. Those blocks are adorable.. and the little sound they make when you place them. Aww. At first I thought it was going to be some kind of tetris mechanic where you have to assemble a shape before it drops to the ground. That could also be interesting. I think it would be fun if you had to assemble smaller more recognizable shapes - like a whole animal based on the required limb set (e.g. head, legs, torso).