Art style and animations are absolutely beautiful and perfectly fit for in the limitation, as well as the main concept. Implementation of interactive puzzle is interesting, but controls are a bit frustrating — shapes sometimes might speen at supersonic speeds, sometimes they won't rotate in the way you need. A tiny error might lead to collapse of the construction like a house of cards, it's not particulary bad and might be games intentional design, but i have feelings that the game had not so many play test.