left and right arrow keys (or a and d) to move the paddle left and right. if the paddle is moving when the ball bounces off of it, it will affect the balls direction. make the ball hit the diamonds to score points. (bottom left) and do I really need to tell you not to let the ball past the paddle :P
I recolored the art to fit a neon theme, I also reshaped and animated the diamonds. I hope that I get in, this looks like a great contest!