The Zirkonian Controller has the ability to control the movement of a host that has been shot with a mind-control dart and has been in use for thousands of years.
The back pieces of the controller control the legs of the host. The buttons on the top part of the controller control the hands and the rotation of the top part controls the arms. The controller also reacts to movement. The dial and the track in the center of the controller control facial expressions, and pressing the center turns the host "off and on." the controller also has a Bluetooth microphone that translates the users speech into the mind-controlled hosts language.
The controller is first used by Skip on the roof to control Ricky. The controller is then dropped down the attic stairs and picked up by Lee who uses it to control Ricky.