A gauge display program is provided which makes it possible for a user to ascertain easily parameter values, and which enables the image of the game itself to be satisfactorily displayed and thereby to enable the interest of the video game itself to be satisfactorily presented to the user. Image data is output to television monitor 21 so that an action-responsive gauge displayed on a game screen is successively switched over, by means of a gauge display switching section 109, to an action-responsive gauge selected as the result of a determination by a gauge display type determination section 102 and action determination section 103, and thus the action-responsive gauge displayed on the game screen is switched over in response to the action of the game character.