| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique which can effectively raise game player's amusement by effectively carrying out mission performance. Ž<P>SOLUTION: When a game medium is thrown-in, the operation of a rotation start member is validated. Winning symbol combination lottery for determining a winning symbol combination from among the plurality of game symbol combinations is performed with the operation of the rotation start member as an opportunity after the validation. When a prescribed start condition is satisfied, the mission performance for presenting a specified symbol combination to the game player is started with the throw-in of the game medium as an opportunity. When the specified symbol combination is stopped and displayed during the continuity of the mission performance, a prescribed privilege is given to the game player. Thus, the game player is impressed by a fact that success or failure in stopping and displaying a specified symbol combination is independent from the result of the winning symbol combination lottery. Such highly reliable mission performance effectively raises the game player's amusement. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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