To provide a game control device which is used as a controller to connect an automobile main body to a game machine.

This game control device is used as the controller to connect the automobile to the game machine. The game control device is equipped with an operation amount sensor, a controller signal converting section, a sound signal converting section, an image signal converting section, and a display device. In this case, the operation amount sensor detects the operation amount of a part required for the operation-control of the automobile. The controller signal converting section converts an output signal of the operation amount sensor into a signal which can be input in a controller interface provided in the game machine. The sound signal converting section converts a sound signal being output from a sound interface provided in the game machine into a signal which can be reproduced in the automobile. The image signal converting section converts an image signal being output from an image interface provided in the game machine into a signal which can be reproduced in the automobile. The display device displays the image signal which is converted by the image signal converting section.