| 摘要 |
PROBLEM TO BE SOLVED: To extend duration of player's concentration and interest in a game and to enhance player's expectation by making the player concentrate on an accessory for opening and closing a big winning opening. SOLUTION: A game machine includes a first accessory and a second accessory which are opened and closed in a special game state. In the game machine, a type of the special game state is determined by lottery, either a first special game state or a second special game state is set, and either a normal probability state or a high-probability state is set as a game state after the end of the special game state. In the first special game state, an opening period per one time of the first accessory and the second accessory is set longer. In the second special game state, the opening period is shorter than that of the first special game state. One of the patterns is selected from a plurality of predetermined opening patterns relating to the first and second accessories. The opening patterns are formed so that the probability for shifting to the high-probability state after the end of the second special game state is increased as frequency of opening of the second accessory is increased in the second special game state. COPYRIGHT: (C)2010,JPO&INPIT
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