| 摘要 |
PROBLEM TO BE SOLVED: To increase an inner hit lottery probability of a specified, special prize, maintain game essence in accordance with a prize winning condition achievement probability of the specified, special prize based on a symbol disposition of each display means actually occurring, reduce a bias to a skill in prize winning of the specified, special prize, accumulate a lot of the inner hit prize winning of the specified, special prize in a short period by a prize winning accumulating means and make the lottery continuously won in the specified, special prize by continuously using various number of prize winning for setting the inner hit state. SOLUTION: The number of symbols of each reel 14 is 21. BARs are disposed as early as possible and evenly by four on either of a left reel 14 and a middle reel 14 and by three on a right reel 14. The inner hit lottery probability of an RB prize is about 1/30. At the prize winning of the RB prize by the inner hit lottery, an RB flag counter is counted as +1. A prize winning use lottery is conducted at the RB flag counter being at least one. At prize winning, a lottery for dividing the number of the prize winning use is conducted to set the number of the prize winning use onto a prize winning use number counter. The inner hit state is set in the RB prize if the number of the prize winning use is set in the prize winning use number counter. COPYRIGHT: (C)2004,JPO
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