| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it extremely difficult to place-hit a jackpot and to facilitate optional probability allocation of displayed symbols in a pinball game machine provided with a symbol display device. Ž<P>SOLUTION: Generation of a jackpot accompanying an entry to a specified winning pocket 11 is determined by a winning determination random number which is a hardware random number, and symbols to be displayed at the symbol display device 13 in the case of the jackpot are determined by a display symbol random number which is a software random number. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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