| 摘要 |
PROBLEM TO BE SOLVED: To more improve the expectation of a player and to play an interesting game by performing lattery to vary a game value imparted by the opening of a variable winning ball device by using the fluctuation of identification information displayed at a variable display part after a specified display form is attained. SOLUTION: Images are successively displayed at the image display part 9 of a variable display device 8 corresponding to the entrance of a hit ball to a start winning port 14, and when prescribed time elapses, three patterns are stopped. Then, in the case that the combination of the stopped patterns is the one for which the respective patterns are matched, large winning is generated. Also, in the case that the combination of the stopped patterns is the one for which specified patterns are matched, the large winning is generated and also the state of high probability is attained. In the state of the high probability, the probability of generating the large winning next is raised, time until the patterns are established after the variable display device 10 starts variable display is shortened and the open state of the variable winning ball device 15 is set long. In this case, lottery is performed every time so as to decide whether or not to open a large winning port during a large winning game. |
