Maybe it's just me, and it could be, but the speed and frequency of the balls are super difficult for me to try to dodge (managed almost 4000 score on my best run). Perhaps removing or slowing them down would make it more playable for me at the very least, or making the lower-scoring blue brick give some protection perhaps or restore health. Just an idea.
The concept is very good and the audio is pretty good, the breaking sound is satisfying. Pretty good game submission!