| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine easy for a player to understand game contents and easy to get acquainted with. SOLUTION: When a big bonus prize is won in this slot machine, if the prize winning mode is the same patterns of white 7, only a small prize winning rate improving game improved in the small prize winning rate is provided for a prescribed period of time. When the prize winning mode of winning a big bonus is the same patterns of 7 with a pattern, a JAC game with only a peculiar JAC point made effective is provided for a prescribed period of time.
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