| 摘要 |
PROBLEM TO BE SOLVED: To provide a Pachinko game machine which can give a hope to a player and gives the pleasure of a game over a long time to the player. SOLUTION: The Pachinko game machine 100 is equipped with a jackpot lottery section 312, a mode setting section 313, and a variation time selection section 314. The jackpot lottery section 312 is triggered by the prize of the game ball in a starting port on a game board to perform a jackpot lottery according to a present game condition. The mode setting section 313 establishes the mode of 1 out of two or more modes based on the lottery result of a jackpot lottery. The variation time selection section 314 chooses the variation period of a special symbol from predetermined variation period groups based on a mode under setting. Further, the mode setting section 313 establishes a mode according to the present game condition if an predetermined event is won in the jackpot lottery during a latency mode, and the variation time selection section 314 chooses a variation period from the variation period groups of a different tendency in the case of a mode according to a high probability game condition and in the case of a low probability game condition. COPYRIGHT: (C)2011,JPO&INPIT
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