Okay. I think it's a good concept, but...
The music is incredibly loud. Please make buttons for the sound effects and the music.
The first level is far too slow. The platform moves slowly and so does the ball. Give players some power ups or make it a little easier to finish, because it's tedious and boring and takes a long time to complete.
I was expecting more in the next levels. I kept playing and waiting for something extraordinary to happen, but maybe it's just me? It's a little boring with nothing else going on-- it's a slow and boring game without power ups, or some sort of achievement to keep players going. I highly suggest you add more to your game.