| 摘要 |
PROBLEM TO BE SOLVED: To prevent fraudulent conducts and provide a smooth and comfortable game environment by reducing a false error control but performing the error control at a suitable timing.SOLUTION: When the kind of a big win won in a special symbol lottery is a probability variation winning, a specific area 16c provided in an attacker (an open port) 16 is opened in a manner where game balls B can easily enter, but when the kind of a big win is a normal winning, it is opened in a manner where game balls B can hardly enter. Error control means 30, at a prescribed timing during a big win game of a normal winning, performs a prescribed error control on the basis of a detection of vibration by vibration detection means 190, but does not perform the prescribed error control during games except during a big win game of a normal winning.SELECTED DRAWING: Figure 6 |
