| 摘要 |
PROBLEM TO BE SOLVED: To enhance the expectation of a player by performing a representation being equal to the representation of a flag storage type machine. SOLUTION: A slot machine includes: a first game mode for performing a lottery to win a special winning combination; and a second game mode where the winning probability of the special winning combination is set to be lower than that of the first game mode. The slot machine also includes: a high expectation representation mode for displaying an image to indicate probability of being in the first game mode; a low expectation representation mode for displaying an image to indicate that the probability of being in the second game mode is higher than that of the high expectation representation mode; and a warning representation mode for displaying an image to indicate that the state is the one where a mode can be shifted to the high expectation representation mode by probability being higher than that of the low expectation representation mode. Shifting is performed between respective representation modes by the establishment of a prescribed condition. COPYRIGHT: (C)2007,JPO&INPIT
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