| 摘要 |
PROBLEM TO BE SOLVED: To suppress decline in interest of a game by dissolving monotonousness in the process of generating a big winning game. SOLUTION: A first start port 390 and a third start port 394 are provided on a game board. The third start port 394 is provided with a pair of movable pieces 396 which can be opened and closed. Prize-winning to the third start port 394 is more difficult than the prize-winning to the first start port 390 when the pair of movable pieces 396 are open, and the prize-winning to the third start port 394 gets easier than the prize-winning to the first start port 390 when the pair of movable pieces 396 are closed. When a game ball enters the third start port 394 to win a prize, performance points P are stored point by point. When the performance points reach a prescribed upper limit value, a special performance is executed. During a time shortening game state, the performance point P is not stored even when the game ball enters the third start port 394 to win a prize. COPYRIGHT: (C)2008,JPO&INPIT |
