| 摘要 |
PROBLEM TO BE SOLVED: To avoid operation to intentionally eliminate generation of a right generating condition, and improve interesting performance by setting plural kinds of hit patterns to set a grant of different game values, and invalidating a grant of a game value of a probability change when a hit is made by a probability changing pattern at generation guaranteeing time of a right generating condition. SOLUTION: Plural kinds of random numbers, for example, for determining a hit, for selecting a hit 1 and a hit 2, for displaying left, middle and right respective patterns and for reach operation or the like are set in a variable display device 50. When a specific display result becomes a prescribed special display result, a probability that a display result of the variable display device 50 becomes a specific display result is changed to a high probability for a period until specific display results of the prescribed number of times thereafter except generation of a right generating condition by the specific display result is derived. When a hit is made by a probability changing pattern at generation guaranteeing time of a right generation condition when a right generating condition is not generated in spite of becoming a special display result, a grant of a game value of a probability change by this probability changing pattern is invalidated. |
