Methods and apparatus provide for acquiring position information about a head-mounted display; performing information processing using the position information about the head-mounted display; generating and outputting data of an image to be displayed as a result of the information processing; and generating and outputting data of an image of a user guide indicating position information about a user in a real space using the position information about the head-mounted display, where the generating and outputting data of the image of the user guide includes determining whether to display the user guide in response to one of: (i) a user operation, and (ii) regardless of the user operation.