| 摘要 |
PROBLEM TO BE SOLVED: To prevent the decline of the operation rate of variable display, and to increase excitement and enjoyment of a game. SOLUTION: Whether or not a random number for variation pattern kind determination extracted when start winning is detected is within a common range to be a specified variation pattern regardless of the total holding storage number is determined. On the basis of the determined result, whether or not to execute a mission reporting performance for presenting an achieving condition to be a mission for turning a special symbol display result to a "jackpot" is determined. The ratio of determining a variation pattern other than the specified variation pattern is made different corresponding to the total holding storage number. From the start of the mission reporting performance to the end of the mission reporting performance, the achieving condition presented as the mission is increased every time the variable display of a decorative symbol is started for instance. Also, during the execution of the mission reporting performance, the variable display state of the decorative symbol is turned to a ready-to-win state every time the variable display of the decorative symbol is started. COPYRIGHT: (C)2010,JPO&INPIT
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