I liked the idea behind the game and the animation, but the whole game felt like a tutorial.
The stages were simple all the way through and even though there were mechanics introduced throughout the game, all of them were simple and not that many.
Basically, (in my opinion, of course) the game could use harder stages and more interesting mechanics.
It just felt like i was playing a tutorial, I got introduced to a mechanic, played a couple of stages explaining it and then it just repeated instead of reaching a point where i get to use those mechanics to get through a "real" challenge.
So there you have it, my crappy opinion that should probably not be taken seriously :P
I'm giving it a 5/5 because I have no idea how ratings work and frankly I don't like them!