On this recreation there is a sq. and a ball throughout the sq.. The ball will switch by way of the sq. and collide with the edges of the sq.. Nonetheless the sq. can flash whilst you contact it. That you need to contact the sq. every time the ball bounces off the sting of the sq. after which the ball can bounce and proceed collaborating in. Within the occasion you miss the second and the edges will flash in the end from the contact of the ball, the game is over.