| 摘要 |
PROBLEM TO BE SOLVED: To make the ratio of rushing into a high probability state or the ratio of continuing the high probability state variable by providing a plurality of start port devices and performing the big winning game of making the entry ratio of a game ball to a specified area different for each start port device. SOLUTION: A specified prize ball port 28b is provided inside a big winning port device 28. Then, a probability variable state is imparted to a player with the detection in the specified prize ball port 28b of the game ball which enters while the big winning port device 28 is opened in the big winning game as an imparting condition. Thus, whether or not the probability variable state is to be imparted depends on the entry ratio of the game ball which enters the big winning port device 28 and also depends on the opening time of the big winning port device 28. Then, a second big winning game is performed in the case of winning a big winning in a first start winning device 25, and a first big winning game is performed in the case of winning the big winning in a second start winning device 26. Thus, the ratio of rushing into the probability variable state or the continuation ratio is changed in the respective start winning devices. COPYRIGHT: (C)2008,JPO&INPIT |
