| 摘要 |
PROBLEM TO BE SOLVED: To promote shooting of game balls even if a plurality of starting means are disposed.SOLUTION: When a second variation game is executed while a variation time period-shortening state is not imparted, a main control CPU adds a number of first starting means holding balls to a number of second starting means holding balls to obtain a total number of the starting means holding balls to be extracted, and executes ready-to-win state determination based on the total number of the starting means holding balls. The probability of affirmative determination in the ready-to-win state determination is set to be lower as the total number of the starting means holding balls is larger. By setting the rate of the affirmative determination in the ready-to-win state determination based on the total number of the starting means holding balls to be lower than when the ready-to-win state determination is executed based on only the number of the second starting means holding balls, the efficiency in consuming second variation game rounds at termination of the variation time period-shortening state is improved and a first variation game round can be immediately executed, and at the same time, shooting of game balls can be promoted to store the first starting means holding balls. |
