| 摘要 |
PROBLEM TO BE SOLVED: To improve the amusement of a game by further increasing player's expectations upon a display result of variable display through a predetermined performance.SOLUTION: Performance control means executes a predetermined performance for reporting whether to control a game into an advantageous state or whether to control a variable winning ball device into the state where game balls are easy to enter the device, while variable display of special symbols is executed. In the case where it is determined to start the predetermined performance for reporting the variable winning ball device into the state where game balls are easy to enter the device while variable display of special symbols and decorative symbols is not executed, the predetermined performance is started on the basis of a time point to start the variable display of the special symbols within a predetermined period shorter than a period until the variable winning ball device is controlled into the state where game balls are easy to enter the device. |
