| 摘要 |
PROBLEM TO BE SOLVED: To give a reality of getting a chance to a player by changing the length of a pattern variation time for a judgement pattern with the appearance of a specified display condition on a display screen of a special pattern display device. SOLUTION: A special pattern display device 7 is provided for determining and displaying a big prize pattern or a failure pattern excluding the big prize pattern for the special profit setting purpose of a player after variation display of a judgement pattern which makes judgement of success/failure. A variation time changing means is provided for changing the length of a pattern variation time for the judgement pattern with the appearance of a specified display condition on a display screen of the special pattern display device 7.
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