| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can surely prevent games under the fraudulence while reducing fraudulent operations by allowing managers of game parlors to recognize the actual fraudulence instantly the fraudulent operations occur. SOLUTION: The game machine in which a plurality of detection means for detecting game balls entering the starting slot and/or scoring slots are arranged vertically on the rear of the playing board is provided with a game ball passage recognizing means which recognizes the passage of the game balls through the starting slot and/or the scoring slots when the game balls are detected by the detection means, upper and lower, within a prescribed time and a fraudulence informing means for informing the occurrence of fraudulences when the game balls are detected by these detection means in the manners other than the above. COPYRIGHT: (C)2004,JPO
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