An object of the present invention is to realize a baseball game in an environment that is difficult to achieve with game-dedicated devices and the joystick used in such devices. When the mouse 22 is moved toward region A, the position (height) of the bat character is raised from the current position. When the mouse 22 is moved toward region B, the position (height) of the bat character is lowered from the current position. When the mouse 22 is moved toward region C, the direction of the bunt is moved toward the left side from the current direction. When the mouse 22 is moved toward region D, the direction of the bunt is moved toward the right side from the current direction.