To provide a novel toy device capable of varying the motion of an operating toy device corresponding to the growth of a virtual living thing while merging the operating toy device and an electronic toy device.

This device has the operating toy device and an electronic toy device (liquid crystal game device 1) to be freely attachably and detachably mounted onto the operating toy device, the electronic toy device has an operating means (operating part 3) for inputting operation information, setting means (control unit 5) for setting a series of operation of the operating toy device based on this inputted operation information and driving control means (control unit 5) for controlling the operation of the operating toy device according to contents set by this setting means and the operating toy device has an operating means to be operated according to control from the driving control means.