| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine increasing a game property by changing the number of rounds according to the profit gained when a large winning hole is opened in a round system, and controlling the winning of a premium as a result. SOLUTION: When the patterns on the display screen 15a of a variable display device 15 are stopped in the prescribed arrangement, a normally closed large winning hole 22 is opened. The large winning hole 22 discharges a specific number of prize balls each time a game ball enters it, and the large winning hole 22 temporarily closed when the specific winning number is reached or when the prescribed time elapsed. A series of opening/closing actions of the large winning hole 22 are repeated. A process from the opening of the large winning hole 22 to its closing is called one round, and the opening/closing actions of the large winning hole 22 are constituted of multiple rounds. This game machine is controlled so that the specific winning number is decreased when the round number is increased. The round number and the specific winning number are determined according to the stopped patterns. |
