Use the slider to change where the smaller pulsing dot is, in relation to the big blue dot and the center of the stage. Avoid the various colors of ball for points. Collect crystals for even more points.
Tips and Tricks: Albeit risky, if you slide the slider from it's min value to it's max (or vice versa) fast enough, you'll 'slice' through the center and won't die from touching any balls. Unless you slice yourself right into one, of course.
