| 摘要 |
PROBLEM TO BE SOLVED: To heighten the subsequent amusement by a game medium entering a prize device. SOLUTION: WHen a game ball enters a prize device in the ordinary game state, a first passing hole 451 is closed by a shutter 51. At the time, the probability that the game ball entering the prize device is stored in a third storing part 443 of a rotor 44 is 1/10. When the game ball is stored in the third storing part 443, at a point of time when the rotor 44 is rotated so that the third storing part 443 conforms to a third passing hole 453, the game ball is guided from the third passing hole 453 to a special area to enter a bonanza state. WHen it is stored in the first storing part 441, the game ball cannot be passed through the first passing hole 451 to be stopped. Whereupon, the probability that the next game ball entering the prize device 40 is stored in the third storing part 443 is 1(10-1)=1/9. This is a higher probability as compared with that at the first. COPYRIGHT: (C)2004,JPO
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