I played the game until saving Bloom and have to say it has a great atmosphere with it's visuals and music. The puzzles were fun, some more or less challenging. I'm not sure if I played the stars with the black dots correctly, I mostly bounced off it until it was charged.
Also encountered two bugs: If you press right click at the start after clearing the first star; and if you hold right click in a star, you stay there and the arrow goes wild :D