In the new Prison Box game, you will need to help the black ball hold out for some time in a closed room without a floor. You will see this room in front of you. On it constantly making jumps your character will move. Hitting the walls, he will constantly change the trajectory of his movement. The room has no floor and this threatens the death of the ball. When it reaches a certain point you will have to click on the screen with the mouse. Thus, you can cause the floor for a few minutes and reflect the fall of the ball.