| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine provided with a formed extra-point unfixed pattern providing amusement even in a normal game by keeping expectation to big prize-winning. SOLUTION: The slot machine is provided with a special pattern for which the putting-out number of medals in prize-winning of it is not fixed. The putting- out number of the medals of the special pattern is decided by the displaying result of a display device which operates in the case of prize-winning of the special pattern, and big prize winning can occur depending on the displaying result. In the slot machine, the expectation to big prize-winning is kept, thereby a player's interest to the game is not lost. Furthermore, it is possible to provide amusement also in the normal game.
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