Patent ID: 7727066

Claim:
A game machine comprising: a monitor for monitoring an updated loss coefficient calculated by factors at least including a difference between an amount of game value inserted into the game machine and an amount of game value paid by the game machine, a game interval time from an end of a preceding game to a following game and a number-of-tokens-bet coefficient determined by dividing a number of bets in a plurality of predetermined periods with an average number of tokens bet on the same model of the gaming machine in a predetermined area, the gaming machine and the same model of the gaming machine being connected to a management device which monitors a difference between a number of tokens inserted and a number of tokens paid of each gaming machine; a comparator for comparing the updated loss coefficient with a preset reference value; and an adjuster for extending a spinning time of a reel spin during a game performed on the gaming machine; wherein the adjuster extends the spinning time when the updated loss coefficient is greater than the reference value.