A video game apparatus includes a CPU that detects a program control code included in a land object in the vicinity of a player object, and the CPU determines a kind of the land object. If the land object is “hole,” the CPU executes a “hole operation” subroutine. Similarly, if the land object is “wall,” “door” or “ladder,” the CPU performs “wall operation,” “door operation” or “ladder” subroutine, respectively.