Click and hold the ball is red. if you happen to be the lucky person to change the remaining clicks to a multiple of 100 million, you will get to see the ball change color! the goal is to make it go through the all the colors and back to red. if you are the REALLY lucky person to make the remaining clicks 0, you will get a surprise! if it is nearing 0, make sure you have the sound on :) P.S. it started at one billion! (i think)