really nice game. In particular I liked the "billiard-room" ambient music and the "tactile" sound the ball makes when colliding. The whole game is really clean and elegant. Very well done.
One thing that made the game less enjoyable than it could have been, IMO, is the viewport shape. It being flat and wide it does not give the player (or at least me) any heads up on what is coming, so I feel there is not much of a chance to strategize and plan where to bounce.