| 摘要 |
PROBLEM TO BE SOLVED: To provide a pinball game machine operating appropriately even if a plurality of symbol operation-start holes are provided. SOLUTION: When a game ball enters symbol operation-start holes 17A and 17B, this pinball game machine 2 executes a lottery process to determine whether or not producing a state advantageous for a player based on a value of a random number generating counter 61, wherein the lottery process is executed by a periodic execution part, which is repeatedly executed at every prescribed time P, for every prize winning (S21 and S22). The updating interval of the random number generating counter 61 is set to 1/2 of the prescribed time P or less. COPYRIGHT: (C)2009,JPO&INPIT
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