Falls short
You obviously put a lot of work into it, but I ended up not liking it. The bit about the screen shaking and the paddle getting pushed downward...it was an interesting effect, but it made it feel like the game was a STRUGGLE. Like you were struggling to hang on and keep pounding this ball upward. I ended up feeling exhausted after playing. That's not really how I want to feel after playing a cute little Flash game.
The other thing is that the ball's direction seemed completely random. On the fourth level I got stuck, the ball would just go in the same path into an empty corner and then down, almost straight up and down. The path never changed. I stopped touching any keys and it looked like it would go on forever. I suppose I could have let the ball fall so as to reset the level, but I was bored at that point. So, you might want to look into that bug.