Control all of the Jacks simultaneously with the arrow keys as you try to get them into the box in each level. Not all Jacks behave the same way; the Jacks with the propeller hats can fly, the Jacks with the yellow hats do the opposite of your command, and the old Jacks must be awakened before they can be moved. Don't let the Jacks touch fire or spikes, or fall off the screen. Some levels contain enemies, which can be killed when a Jack jumps on them.