The goal of these games is to unlock devices.
Each device in the Combination game has 4 digits on the outside surrounding a target digit in the center. The player must rotate the 9 devices so that the top number of each device matches the target in the center.
Each of the 9 devices in the Reunion game has four identical digits. For instance, the first device has four 1s and the second has four 2s. The last has four 9s. At the beginning of the game, all of the digits are shuffled and the player must rotate and swap the digits until all of the digits have been returned to their original positions.
In the Invisible game, the player will rotate and swap different shapes among nine devices. Identical objects will disappear during the swaps. To unlock the devices, the player must make all but four shapes disappear.