| 摘要 |
PROBLEM TO BE SOLVED: To use one big winning port to realize both a special game in a state of allowing a game ball to pass through a specific area in the big winning port and a special game in a state of disallowing the game ball to pass through the specific area.SOLUTION: Specific game control means 122 determines whether or not to execute shifting to a probability variation state after ending of a special game, according to whether or not a game ball entering a big winning port 91 during the special game has passed through a probability variation area in the big winning port 91. A probability variation specific area mechanism 164 switches between a state of allowing passage of the game ball to the probability variation specific area and a state of disallowing the passage. Special game control means 120 controls a state of the probability variation specific area mechanism 164 in accordance with a single control pattern; however, uses one big winning port to selectively perform the special game in a state where the passage of the game ball to the probability variation specific area is relatively easy and the special game in a state where the passage of the game ball to the probability variation specific area is relatively difficult, by opening/closing the big winning port 91 in accordance with any of multiple kinds of opening/closing patterns. |
