Abstract: An image generation device includes a processor including hardware. The processor is configured to implement a reception process that receives a command selected by a player from a plurality of commands, a game process that includes a process that implements the effect of the received command, and a display process that displays a game image based on the results of the game process. The processor is configured to implement the game process that includes a process that implements the effect of the command that corresponds to information about a character that is the target of game play performed by the player and viewpoint information about the player.

Abstract: The position and the posture of an HMD, and the position of a game controller in the real space are detected, and tracked. An image of a virtual space is displayed on the HMD. A controller object is disposed and displayed at a position within the virtual space that corresponds to the position of the game controller in the real space viewed from the HMD. Therefore, the player can easily find and hold the game controller even when the player wears the HMD.

Abstract: An image generation device includes a processor including hardware. The processor is configured to implement a reception process that receives a command selected by a player from a plurality of commands, a game process that includes a process that implements the effect of the received command, and a display process that displays a game image based on the results of the game process. The processor is configured to implement the game process that includes a process that implements the effect of the command that corresponds to information about a character that is the target of game play performed by the player and viewpoint information about the player.

Abstract: The position and the posture of an HMD, and the position of a game controller in the real space are detected, and tracked. An image of a virtual space is displayed on the HMD. A controller object is disposed and displayed at a position within the virtual space that corresponds to the position of the game controller in the real space viewed from the HMD. Therefore, the player can easily find and hold the game controller even when the player wears the HMD.

Abstract: A transfer file stored in a game cartridge has a transfer file nested structure in which a transfer file in which a game program is converted into a transfer file is further converted into a transfer file. Specifically, the game program is converted into a transfer file at a level “1” (base level) of the nested structure, and a transfer file [n?1] converted at an immediately lower level “n?1” and the game program are converted into a transfer file at a level “n”. Note that n=1, 2, . . . N.

Abstract: A transfer file stored in a game cartridge has a transfer file nested structure in which a transfer file in which a game program is converted into a transfer file is further converted into a transfer file. Specifically, the game program is converted into a transfer file at a level “1” (base level) of the nested structure, and a transfer file [n?1] converted at an immediately lower level “n?1” and the game program are converted into a transfer file at a level “n”. Note that n=1, 2, . . . N.