| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel Pachinko game machine changing the period of continuance of a presentation mode to be executed in a presentation device such as an image display according to a prescribed event occurring in the presentation device. SOLUTION: In the Pachinko game machine, the presentation mode is executed in the image display 5 when a prescribed condition is satisfied. The number of times of variation of special symbols composed of a prescribed value is set as the initial value of the number of times of continuance of the presentation mode. The number of times of variation composed of a numerical value previously set for each event is added whenever a prescribed event related to the presentation occurs in the image display 5 and in a movable generator 31, and the number of times of variation after the addition is updated as a new number of continuance of the presentation mode. COPYRIGHT: (C)2010,JPO&INPIT
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