| 摘要 |
PURPOSE:To enhance an interest in a game by fluctuating the occurrence probability of a special game, so that the game upon occurrence is continuously generated by the further prescribed frequency. CONSTITUTION:This machine is constituted of a random number 7 extraction means 132 for extracting a random number from random numbers generated with a random number generation means 131 for determining picture patterns to be stopped and displayed in a display section, a picture pattern judgement means 133 for making judgement about whether the combination of the stationary and displayed picture patterns in the display section corresponds to the prescribed prize mode, a special picture pattern judgement means 134 for making judgement about the types of the special picture patterns and determining the continuous generation frequency of the special picture patterns on the basis of the types thereof, when the means 133 identifies the combination of the special picture patterns as permitting a special game, and also a probability change means 135 for changing the occurrence probability of the special picture patterns from a normal level to a high level until the frequency reaches the continuous level set with the means 134. |
