| 摘要 |
PROBLEM TO BE SOLVED: To improve amusements of a game by providing a new game property.SOLUTION: A first start port 20 is constituted of a variable start port, and a first start port 21 and a second start port 22 are constituted of a fixed start port. By ball entry to a start port, drawing of a big winning is performed, and variable display of symbols is performed. The variable display based on the ball entry to the first start port and the variable display based on the ball entry to the second start port are simultaneously performed. In a low probability sate or a time-shortening and high probability state, the time of the variable display based on the ball entry to the second start becomes 14 hours and a drawing result is not established. In a non-time-shortening and high probability state, the time of the variable display based on the ball entry to the first start port becomes 14 hours and a drawing result is not established. In both of the non-time-shortening and high probability state and the time-shortening and high probability state, in order to reduce consumption of game balls compared to an initial state, the second start port is provided such that game balls can enter more easily at all times compared to the first start port 21. |
