| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine and a game system that can prevent players' excitement and enjoyment from decreasing. Ž<P>SOLUTION: When a microphone 19 collects sounds higher than a predetermined sound pressure level and the sound signal is input in a sound analysis part 39, the sound analysis part 39 analyzes the input sound signal and determines whether or not a prize winning sound emitted from a neighboring game machine is included in the collected sounds. Then, if the prize winning sound is included, a rendition control part 32 is informed of information. When receiving from the sound analysis part 39 the information of a prize winning sound being included, the rendition control part 32 lets the game machine change the normal mode to a special mode. The special mode is easier to select a lottery image of low appearance rate and high expectation value compared with the normal mode, so the appearance rate is heightened. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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