Gaming machine which runs common game at plurality of gaming terminals and a playing method thereof

1. A gaming machine comprising:

a plurality of gaming terminals each having an input device through which an external input can be inputted, and a terminal controller programmed to carry out steps (a1) to (a4) below; and

a center controller which has a memory and which is connected in communication with the gaming terminals, and is programmed to carry out steps (b1) to (b3) below;

wherein each terminal controller carries out the steps of:

(a1) receiving a bet based on an input through the input device;

(a2) when the bet is received, running a unit game of a base game;

(a3) outputting, to the center controller for each unit game, a piece of bet amount information based on a bet amount corresponding to the bet; and

(a4) running a common game in response to a game start command from the center controller;

wherein the center controller carries out the steps of:

(b1) receiving the piece of bet amount information, and cumulatively storing in the memory the piece of bet amount information as a cumulative value in association with the gaming terminal;

(b2) determining whether a common game start condition is met, which common game start condition is a condition for starting the common game, based on a first threshold value and a plurality of cumulative values associated with the plurality of gaming terminals; and

(b3) when the common game start condition is met, outputting a common game start command to a gaming terminal which is associated with a cumulative value equal to or greater than a second threshold value, which is equal to or lower than the first threshold value;

wherein the plurality of cumulative values associated with the plurality of gaming terminals serve as a resource for payout of the common game;

wherein a difference between a maximum cumulative value of the plurality of cumulative values and the first threshold value is displayed on a common display;

wherein a difference between each of the plurality of cumulative values and the second threshold value is displayed on a display of each the plurality of gaming terminals; and

wherein a predetermined image is movable along a travel area between a start position and an end position on the common display, the end position corresponding to the first threshold value and the predetermined image corresponding to a maximum value of the plurality of cumulative values, and a position of the predetermined image along the travel area corresponding to a difference between the first threshold value and the maximum cumulative value of the plurality of cumulative values.

2. The gaming machine according to claim 1 , wherein the center controller, in step (b2), makes it the common game start condition when any one of the cumulative values associated with the plurality of gaming terminals have reached the first threshold value.

3. The gaming machine according to claim 2 , wherein the center controller further carries out the step of: (b4) randomly determining the first threshold value within a predetermined range which is equal to or greater than the second threshold value.

4. The gaming machine according to claim 1 , wherein the center controller, in step (b1), cumulatively stores in the memory a value indicating the bet amount as the cumulative value.

5. The gaming machine of claim 1 , wherein when the maximum cumulative value of the plurality of cumulative values is changed to an other of the plurality of cumulative values, a difference between the other cumulative value and the first threshold value is displayed on the common display.

6. A playing method of a gaming machine having:

a plurality of gaming terminals each having an input device through which an external input can be inputted; and a center controller which has a memory and is connected in communication with the gaming terminals, the playing method comprising the steps of:

each terminal controller carrying out:

a first step of receiving a bet based on an input through the input device;

a second step of, when the bet is received, running a unit game of a base game;

a third step of outputting, to the center controller for each unit game, a piece of bet amount information based on a bet amount corresponding to the bet; and

a fourth step of running a common game in response to a game start command from the center controller; and

the center controller carrying out:

a fifth step of receiving the piece of bet amount information, and cumulatively storing in the memory the piece of bet amount information as a cumulative value in association with the gaming terminal;

a sixth step of determining whether a common game start condition is met, which common game start condition is a condition for starting the common game based on a first threshold value and a plurality of cumulative values associated with the plurality of gaming terminals; and

a seventh step of, when the common game start condition is met, outputting a common game start command to a gaming terminal which is associated with a cumulative value equal to or greater than a second threshold value, which is equal to or lower than the first threshold value;

wherein the plurality of cumulative values associated with the plurality of gaming terminals serve as a resource for payout of the common game;

wherein a difference between a maximum cumulative value of the plurality of cumulative values and the first threshold value is displayed on a common display;

wherein a difference between each of the plurality of cumulative values and the second threshold value is displayed on a display of each the plurality of gaming terminals; and

wherein a predetermined image is movable along a travel area between a start position and an end position on the common display, the end position corresponding to the first threshold value and the predetermined image corresponding to a maximum value of the plurality of cumulative values, and a position of the predetermined image along the travel area corresponding to a difference between the first threshold value and the maximum cumulative value of the plurality of cumulative values.

7. The method of claim 6 , wherein when the maximum cumulative value of the plurality of cumulative values is changed to an other of the plurality of cumulative values, a difference between the other cumulative value and the first threshold value is displayed on the common display.