An object arranged in a virtual world is caused to move in accordance with data based on a load applied to a load detection device. Then, based on attitude data outputted from a portable display device and a position of the object in the virtual world, a first virtual camera for generating an image of the virtual world is controlled, and a first image representing the virtual world viewed from the first virtual camera is displayed on the portable display device.

Techniques are disclosed that involve mobile augmented reality (MAR) applications in which users (e.g., players) may experience augmented reality (e.g., altered video or audio based on a real environment). Such augmented reality may include various alterations. For example, particular objects may be altered to appear differently. Such alterations may be based on stored profiles and/or user selections. Further features may also be employed. For example, in embodiments, characters and/or other objects may be sent (or caused to appear) to other users in other locations. Also, a user may leave a character at another location and receive an alert when another user/player encounters this character. Also, characteristics of output audio may be affected based on events of the MAR application.

A video game device calculates a difference vector extending from a predetermined reference position on the screen to an input position. Moreover, the video game device calculates movement parameter data used for moving, with respect to a fixed point in the virtual space uniquely determined based on a position of the controlled object, the point of sight to a position that is determined by a direction in the virtual space based on a direction of the difference vector and a distance in the virtual space based on a magnitude of the difference vector. The point of sight is moved based on the movement parameter data. The video game device produces an image based on a virtual camera, which has been moved according to the movement of the point of sight, and displays the image on the screen of a display device.

A method for coordinating interaction between one or more computing devices for users participating in an interactive activity is provided. A reference point is identified on a physical surface via a primary computing device. The primary computing device may include a mobile computing device. The physical surface is utilized to render an interactive activity for one or more users. The reference point is communicated to one or more secondary computing devices, via the primary computing device. An interaction between the primary computing device and the secondary computing devices is coordinated utilizing the reference point. A user perspective image of the interactive game relative to the reference point is rendered on the physical surface via the primary computing device and the secondary computing devices to the users.

A coordinate calculation apparatus calculates a coordinate point representing a position on a display screen based on an orientation of an input device. The coordinate calculation apparatus includes direction acquisition means, orientation calculation means, first coordinate calculation means, and correction means. The direction acquisition means acquires information representing a direction of the input device viewed from a predetermined position in a predetermined space. The orientation calculation means calculates the orientation of the input device in the predetermined space. The first coordinate calculation means calculates a first coordinate point for determining the position on the display screen based on the orientation of the input device. The correction means corrects the first coordinate point such that the first coordinate point calculated when the input device is directed in a predetermined direction takes a predetermined reference value.

This application discloses a method for moving a virtual character's perspective in a virtual environment performed at a terminal. The method includes: displaying a first perspective image of an application program observed using a first perspective direction, the first perspective image including first and second function controls; switching the first perspective image to a second perspective image according to the first perspective movement operation on the first function control, the second perspective image being an image of the virtual environment observed using a second perspective direction; receiving a second perspective movement operation on the second function control while the first function control is in an enabled state; and switching the second perspective image to a third perspective image according to the second perspective movement operation on the second function control, the third perspective image being an image of the virtual environment observed using a third perspective direction.