| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko game system by which unfair act id grasped by detecting the number of abnormal prize balls to prevent devastations. SOLUTION: A data controller 70 to collectively control various kinds of information on respective game machines 100 in an game island, such as gained ball information, recording medium issuing information sale information of ball lenders information on special prize 'jackpot', etc., and an unfair action display means which can detect 'the number of abnormal prize balls' by game machines in game islands and can displaying an alarm are provided in this system.
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