| 摘要 |
PROBLEM TO BE SOLVED: To provide a pinball game machine, capable of attaining game property substantially equal to probability variation without changing a jackpot probability or the like. SOLUTION: The pinball game machine includes a movable winning means 16 which is laid in a winnable open state when a general random lottery is won. The general random lottery includes at least two kinds of first and second jackpots. The opening and closing pattern of the movable winning means 16 in the first jackpot is set to a general opening and closing pattern in which an open time such that a game ball can easily win both during a special game state and during the other general game state, and the opening and closing pattern of the movable winning means 16 in the second jackpot is set to the general opening and closing pattern during the special game state and a short opening and closing pattern in which only an extremely short open time is secured, compared with the general opening and closing pattern, during the general game state. COPYRIGHT: (C)2011,JPO&INPIT
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