| 摘要 |
PROBLEM TO BE SOLVED: To improve the interest of a game by providing a novel game property.SOLUTION: When a game ball enters a first start port or a second start port, a special pattern is decided. If a jackpot pattern (A-E) is then decided, a bonanza is attained to execute a special play. Drawing patterns A-C are decided at the first start port, and drawing patterns D and E are decided at the second start port. The game state is lowly probable if the drawing pattern A is decided, and the game state is highly probable if the drawing patterns B-E are decided. The first start port and the second start port can accept the game balls at all times, but the game balls are liable to enter the first start port for a time shortening period. Only during the non-time shortening and for the high-probability period, the pattern deciding treatment by the entry of the game balls into the second start port is substantially carried out. When the time shortening state reaches a limiter frequency, the non-time shortening and high-probability states are established to assure two or more bonanzas. |
