The white ball traveling around its own world was trapped. He got into the room by which now constantly jumps. You in the game Choose Gravity will help him save his life. You will see a room on the screen. Red squares will fly out from below and above. You do not have to face them, because then it will bring death to your character. Therefore, by clicking on the screen with the mouse you will need to change its direction of movement. Also on the playing field may appear rubies, which your ball will have to collect.