Click the big ball to make it bounce. Press space to change colors and make the little ball go to you mouse. Space also changes the size to 100(default). You should REALLY try turbo mode(shift=flag at the same time then click flag again). Up+Down arrows to change the sizes. There is a trick, so watch out.
Thank you liamlion for awesome original project. Sound: Doctor who 10th doctor music: BBC wales; Murry Gold
