Abstract: An adapter is disclosed which is applicable for use in conjunction with a video game controller system. The disclosed adapter increases the manual inputs that can be communicated from one of the manual controller units to the video game controller system. The adapter comprises a shell opened at one end and adapted to fit over and envelop the joystick member such that the joystick member can be moved by manually moving the shell. A switch is mounted in the shell, and a conductor is provided for coupling the contacts of the switch to elements of an auxiliary connector. The auxiliary connector is adapted for coupling to an input port of the video game controller system. The auxiliary connector includes an auxiliary input port for receiving the connector of the respective manual controller unit.