Based on some of the feedback I've tweaked the handling a little. The controls still use UP to move foward and LEFT and RIGHT to rotate, but I've changed the handling on 3 of the balls to make them rotate a little slower/smoother. I haven't yet implemented an alternate control scheme... that will come in a future version when I get some time away from a contract job due this month. I also fixed a bug in the scoring.
Thanks again to everyone for checking it out and all the feedback.
Disco Balls: It's fast paced action as you guide your marble to control the board while avoiding the competition. Pick your marble carefully, control the board and beat the clock to survive in the Marble Disco!