-not sure what the goal of the game is. Is there some way to show what the objective is? There doesn't have to be a win-state, but knowing what you have to do (stay alive as long as possible) will help a lot.
-also, controls aren't entirely clear as to how they affect the ball. It's hard to see the turning of the ball at glance (the yellow/beige and white are too similar), and it doesn't feel responsive because it takes too long to turn.
It's an interesting idea, but it needs more clarity. Hope that helps, and good luck!