| 摘要 |
PROBLEM TO BE SOLVED: To increase the possibility that an advantageous condition occurs when a motor-driven winning device opens and when a winning ball is guided into a special winning device. SOLUTION: Under a predetermined playing condition, a motor-driven winning device 8 placed above a special winning device 10 is held open until a certain time period elapses or until a predetermined number or more of winning balls enter a plurality of passing areas 15, 16 formed in the special winning device 10. Therefore, the possibility that at least one of the winning balls allowed into the special winning device 10 is guided into a special device operating area 16 is increased to make an advantageous condition more likely to occur. |
