A pair of balls: red and blue went on a journey in the game Beam Ball. They flew far enough and completely relaxed, but when they approached the world of blocks, they found themselves in a strip of laser traps. The space is crossed by blue and ruby lines equally deadly, but the heroes have a chance to slip through obstacles. If the line corresponds to the color of the ball, it can pass through it without the threat of being cut in half. Your task is to rotate the characters so that they touch the safe rays and move on. The number of traps will increase, will require a high concentration of attention and the ability to respond quickly to a change in the situation.