| 摘要 |
PROBLEM TO BE SOLVED: To give variety to a game in a normal mode. SOLUTION: A prize-winning probability A table 53, a prize-winning probability B table 54 and a prize-winning probability C table 55 are assigned to the random number value group of a prize winning bonus points prize-winning probability table 51. When BB prize-wins internal prize-winning, a probability table drawing part 50 samples one random number and collates it with the prize winning bonus points prize-winning probability table 51. One of the probability table is selected depending on which group the sampled random value belongs to. The selected probability table is used by a a normal mode after the finish of the BB mode. When BB or RB is carried over, the probability table is selected similarly and BB or RB is used in a carried-over game.
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