Bouncing balls can not sit still, they are pulling travel. In the game Color Stairs for a black rubber ball given the opportunity. Before him stretches an endless staircase, periodically changing color. Help the character ride through it by collecting points. A piggy bank with points will fill up faster if you make the ball jump on white circles. But bypass the black thorns, one awkward touch to them and the journey will end. The farther, the speed becomes higher, and the stairs will begin to move in a horizontal plane.