Game system, game execution apparatus, and portable storage medium

摘要

A game system in which game software produced to be used in stationary game machines can be used in portable game machines. The game system includes a stationary game machine, a portable game machine, and a memory card connectable to both the stationary and portable game machines. Image data contained in game software produced for the stationary game machine shows an image in the form of free-form surface. The stationary game machine converts the image data to show the image in the form of a polygon according to processing performance of the portable game machine, and stores the converted image data and a game program executable by the portable game machine onto the memory card. The portable game machine executes the game program stored on the memory card, and generates and displays a display image from the image data stored on the memory card.

主权项

1. A game system comprising:
a first game execution apparatus and a second game execution apparatus which each executes a game in accordance with a game program, the first game execution apparatus having a higher processing power than the second game execution apparatus; and a portable storage medium, wherein the portable storage medium:
stores information written by the second game execution apparatus and indicating the processing power of the second game execution apparatus;holds management information for managing use of game software that includes the game program, acquires the game software from the first game execution apparatus and stores the game software;judges whether the game software is permitted to be used in the second game execution apparatus according to the management information, when the game software is requested by the second game execution apparatus; andoutputs the game software to the second game execution apparatus, when the portable storage medium judges that the game software is permitted to be used in the second game execution apparatus, wherein the first game execution apparatus:
reads the game program and first image data suited for use in the first game execution apparatus from a storage medium having a larger capacity than the portable storage medium;reads the information indicating the processing power of the second game execution apparatus from the portable storage medium;converts the first image data to second image data suited for use in the second game execution apparatus based on the information indicating the processing power of the second game execution apparatus; andoutputs the game software that includes the game program and the second image data to the portable storage medium, and wherein the second game execution apparatus:
does not include a mechanism for reading data from the storage medium having the larger capacity than the portable storage medium;requests the game software from the portable storage medium; andwhen acquiring the game software from the portable storage medium, executes a game in accordance with the game program, generates an image from the second image data and displays the generated image in accordance with a progression of the game.