In a simulation game machine for play on the basis of images of three-dimensionally constituted terrain features and characters which are represented as if viewed from a prescribed camera within a virtual space, allows the viewing point to be shifted in three dimensions while looking over a stage, thereby enhancing the interest of the game. Upon entering a topographical mapping data check, the viewing point is shifted while panning and zooming in movie-like fashion along a predetermined path, and messages disposed along the path are displayed.