GAME MACHINE THAT VARIES FACTORS OF ENTERTAINMENT SOUND, AND CONTROL METHOD AND COMPUTER PROGRAM USED THEREIN

摘要

Provided is a game machine which can prevent music that is repeatedly replayed during execution of a game of chance whose period is not reliably determined from becoming boring. A game machine (1) performs a game of chance while repeatedly replaying a piece of music of a predetermined length, and includes a roulette game unit (RG) that performs a game of chance by employing a physical movement of a ball (B) as the game of chance. And, the game machine (1) changes factors of the piece of music of predetermined length that is being repeatedly replayed, so that a plurality of factors that make up said piece of music of predetermined length start to change in order along with the lapse of time while the game of chance is performed by roulette game unit (RG).