| 摘要 |
PROBLEM TO BE SOLVED: To satisfy the gambling passion of a player furthermore even during special prize generation and to increase thrills and excitements in the entire game. SOLUTION: A pattern variation game is executed in a variable display device 30 based on the entry of a ball to a start winning port 20, and in the case that the display is of a big win, the special prize, that is, opening and closing a variable winning device 50 for the maximum of 16 times is offerred. During the special prize offer, when the ball enters the start winning port 20, the additional pattern variation game of the same display contents as the pattern variation game is executed. When the additional pattern variation game is established as big winning display, it is defined that an additional condition is established and the variable winning device 50 is repeatedly opened and closed for the number of times of the establishment of the additional condition further following the end of the special prize. |
