To realize a game, or the like, which has a reality and is full of actual atmosphere in the game, or the like, wherein an actually taken animation is displayed on a screen.

In a simulation game wherein a tram, for example, is virtually operated, a first image region 51 (animated scene seen through a window before a driver's seat) and an operation panel 52 being a second image region other than the region 51 are displayed on a game screen 50 to obtain an average value of luminance at a predetermined region 53 in the region 51, and the brightness on the panel 52 or ON/OFF of the illumination of a meter 54 is controlled according to the average value of luminance (brightness of a part seen through the window of the driver's seat) at the region 53.