Nice idea, it was very hard to control but still fun to play. The only criticism I have is colliding with enemies at the boundaries since they random and hard to avoid (except by avoiding all the screen boundaries). I suggest making a smaller boundary inside the screen where the player bounces and the enemies appear normally at the full screen boundaries. This will leave a margin to avoid incoming enemies. Otherwise, the game is well made. Good job.
Edit: My high score is 5.. yes only 5 :D