Navigate a white square through various levels, avoiding the obstacles and collecting power-ups and points along the way. Remember that you'll lose a life if you hit the blue/purple blocks or if you stray outside the boundaries of the play area. Collect the different power-ups to increase your score and change the size of your white square. Avoid the red orbs as they will reduce your score if you touch them. There's a boss at the end of each level, try to get past safely and proceed to the next level.