Abstract: A first value is calculated, based on a difference of a first load data based on an output of a first load sensor 82a provided at a right front part of a supporter 78 for supporting a player and a second load data based on an output of a second load sensor 82b provided at a right rear part of the supporter; a second value is calculated, based on a difference of a third load data based on an output of a third load sensor 82c provided at a left front part of the supporter and a fourth load data based on an output of a fourth load sensor 82d provided at a left rear part of the supporter; and an action of an object to be displayed on a display screen is determined based on the calculated first value and the second value.

Abstract: An instrument panel with meters/indicating lamps and their drive circuits implemented therein, a centralized control circuit board provided with control circuits for vehicle-mounted electric equipment including the meters/indicating lamps, and an electric junction box for distributing power sources and input/output signals for the vehicle-mounted electric equipment and for integrating ground wires, are gathered and integrally united. Electric wiring and installation of electric instruments such as an instrument panel in the dashboard portion of an automobile are facilitated.