Patent ID: 11915555
Assignee: NINTENDO CO., LTD.
Field: Control (Instruments)
Classification: CPC G  A | IPC A  G

Claim 20:
21. An information processing apparatus comprising:
at least one computer that stores computer executable instructions that are configured to cause the at least one computer to perform operations comprising:
storing, to electronic memory of the computer, data for a plurality of virtual items that are usable by a user within a video game that includes a virtual game world, where each one of the plurality of virtual items is included in one of a plurality of item groups, where each of the plurality of item groups is associated with a corresponding appearance rate, where each corresponding appearance rate is stored as a degree of rarity for a respective one of the plurality of item groups;
executing the video game that is programmed to accept input from a user to use different ones of the plurality of virtual items within the video game;
automatically performing a first draw process at a predetermined timing to select, based on the corresponding appearance rates that are stored in connection with the plurality of item groups, at least one of the plurality of item groups, wherein the first draw process includes performing a separate draw process for each of the at least one of the plurality of item groups that are selected;
presenting, to a display screen, a presentation element for each item group that has been selected, where each presented presentation element is visually different from other presented presentation elements;
based on an input provided by the user to specify one of the presentation element(s) that has been presented to the display screen, performing a second draw process to select, based on corresponding appearance rates that are associated with each virtual item within the item group associated with the specified presentation element, at least one item from within the item group associated with the specified presentation element; and
unlocking, for use within the video game by the user, the at least one virtual item.