Simply awesome concept.
The concept of this game was great; deserves all 10 stars. However, the way it was put in, and I mean in the way of casual shapes, was a tad too casual..
What I'm trying to say here is that I can imagine this game becoming a classic if there was a retro version (Like Galaga or PacMan), a TON more levels, and a level editor.
Oh, and it'd be cool for a final boss or something if there was another star shape, and while it started to move shapes at you just like you do, you had to dodge or stop them (and more incoming shapes) while making way through a maze or something to collide with the star, completing the last level. Just an idea.