| 摘要 |
PROBLEM TO BE SOLVED: To enhance interest in a game by preventing specific performance from becoming monotonous.SOLUTION: In variable display of decoration symbols based on a start condition satisfied when game balls enter a variable prize winning ball device 15 during an open state, it is determined whether or not to execute the specific performance, and specific performance is executed during the variable display of decoration symbols. In accordance with the number of satisfied start conditions (for example, the number of second reservation memories) as game balls enter the variable prize winning ball device 15 when the variable prize winning ball device 15 is changed to the open state, it is determined to execute the specific performance at a different rate (for example, it may be determined to execute the specific performance only when the number of second reservation memories is equal to or larger than a prescribed number [for example, 2 or larger]). |
