I really like the smooth finish of this. The gameplay works well, puts me in the same kind of state as super hexagon. The use of the mouse for the play mechanic is great; it is very satisfying to keep on target with the sound! The trajectories are a really good idea too! My only complaint would be that it ramps up too fast for me, after a couple of accelerations, I just play very close to the star, I can not use the trajectories to anticipate anymore.