Patent ID: 8409005

Claim:
A music game system, comprising: an input device imitating a stringed instrument, the input device being located within an operational space and including a body portion, a neck portion extending from the body portion, a head portion provided to a leading end of the neck portion, and an acceleration device that can detect acceleration of the input device; and an operation guiding device that (i) instructs operation of the input device to a player by determining a plurality of operation moments of the input device included in a predetermined time period from a current time toward a future time in a piece of music being played in a game, (ii) displays an operation instruction sign corresponding to each of the plurality of determined operation moments and an operation reference sign corresponding to the current time arranged in a layout along a time axis on a game screen, and (iii) produces a relative displacement between the operation reference sign and each operation instruction sign according to progress of time in the piece of music so that a location of each operation instruction sign coincides with a location of the operation reference sign at the moment along the time axis that the respective operation moment of the input device is expected; wherein the operation guiding device includes a motion guiding device that (i) instructs the player to perform a predetermined motion of the input device by displaying a motion instruction sign corresponding to a moment at which the player should carry out the predetermined motion of the input device, displayed in the layout along the time axis on the game screen, and (iii) produces a relative displacement between the motion instruction sign and the operation reference sign according to the progress of time in the piece of music so that a location of the motion instruction sign coincides with a location of the operation reference sign at the moment along the time axis that the predetermined motion is expected, wherein the predetermined motion defines a motion of the input device detected by the acceleration device between two positions located within the operational space.