To optimally control response means by storing consumed power information of the response means in a game machine operation device, transmitting the consumed power information to the game device according to the information demand command, and transmitting response means control data based on the consumed power information to the operation device.

A game system GS is constituted of a game machine main body 27, a game machine operation device (controller) 10, and a monitor 33, and a CD-ROM driver for regenerating the CD-ROM is incorporated in the game machine main body 27. In this case, when parameters are set to respective actuators of the controller 10 or response means for generating various types of vibration in the game machine main body 27, whether a current value is limited or not is decided by a current limit processing. That is to way, all the consumed current data of all the actuators are found as well as the consumed current data of the respective actuators so that the actuators are driven by the limited current value based on the comparison results with the regulation value.