You in weightlessness consider, you are a small square flickering and you must join the red square. To help you, of bricks are placed, they will stop you on your course. You move with the fl?ch?es keys of the keyboard and must be pressed on its bricks to achieve your goal; if not, it is? a kind of ?intergalactic space-time disintegration?!!! Good truce of jokes, you help also bombs by exploding them or while while being useful to you before they do not explode. To include/understand best, it is to test: 30 levels await you; if you arrive at the last, you are really an ace!