| 摘要 |
PROBLEM TO BE SOLVED: To provide a pachinko game machine capable of setting the lottery probability based on the result of a lottery probability setting game selectively operated by a player himself. SOLUTION: A player-selected screen of a probability switch setting pattern is displayed in a coin pattern before a condition device is operated after the occurrence of a big prize, and the player operates a selection button to select 'surface' or 'back'. 'Surface' or 'back' is set at random on the probability switch setting pattern in advance. If the 'surface' or 'back' selected by the player coincides with the 'surface' or 'back' set on the probability switch setting pattern, the lottery probability is shifted to a high probability. If they do not coincide with each other, the lottery probability is shifted to a low probability. |
