| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make a player more interested in the announcement presentation for generation of a special game state, and to enhance the eagerness of the player for the participation in the announcement presentation for generation of the special game state. <P>SOLUTION: A presentation controlling microcomputer 100 determines whether execution of a probability-variable upgrade presentation is specified or not based on a received symbol/presentation specifying command. When execution of the probability-variable upgrade presentation is specified in a jackpot game round, the microcomputer sets the presentation period (the number of times of presentation) to execute the probability-variable upgrade presentation. The degree of difficulty in the operation is set so that at least either one of the set presentation periods is different from the other periods. The probability-variable upgrade presentation is executed according to the set presentation period and the degree of difficulty in the operation, and when it is determined that a prescribed condition for the upgrade is satisfied by detecting an on-signal from a control button 120, the upgrade to the probability variable game state is announced. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
