| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of sufficiently improve fun in games. SOLUTION: The game machine has a variable display means, a variable prize winning means, an operation means for operating the variable prize winning means, and a probability fluctuation means for changing probabilities for displaying a specific pattern on the variable display means. If the specific pattern is a first probability fluctuation pattern, the operation means operates the variable prize winning means according to a first operation mode, and the probability fluctuation means changes probability for subsequently displaying the specific pattern on the variable display means into higher probability. If the specific pattern displayed on the variable display means is a second probability fluctuation pattern, the operation means operates the variable prize winning means according to a second operation mode, and the probability fluctuation means changes probability for subsequently displaying the specific pattern on the variable display means into higher probability. If the variable prize winning means operates according to the second operation mode, a prize winning rate for game balls in the variable prize winning means is lower than the prize winning rate according to the first operation mode. COPYRIGHT: (C)2006,JPO&NCIPI
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