| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pinball game machine that can prevent a fraudulent action of adding the number of credits by fraudulent credit information from the outside. <P>SOLUTION: The pinball game machine includes: an entry detection means B3 for detecting an entry of a game ball; an entry management part B23 for imparting a prescribed credit corresponding to the detection of the entry and storing transmitted credit information; a credit information management part B24 for receiving the credit information from the entry management part, adding the imparted credit to the stored credit for imparting hittable game balls and storing the received credit information; a fraudulent credit detection part B27 for, when the entry of the game ball is detected by the number of times exceeding the number of game balls enclosed inside the game machine within the prescribed time by the entry detection means, confirming consistency between the transmitted credit information by the entry management part and the received credit information in the credit information management part, and detecting whether the credit information management part has received fraudulent credit information other than the credit information from the entry management part. <P>COPYRIGHT: (C)2012,JPO&INPIT |
