| 摘要 |
PROBLEM TO BE SOLVED: To improve the interest of a user by controlling game condition so that the probability of leading a specific display mode is increased by an auxiliary game control means mode when a specific game condition is satisfied, thereby easily entering game balls into a start prize-winning device and frequently executing preliminary game. SOLUTION: A variable display 20 is provided as a preliminary game device and a normal electric accessory 70 is provided as the start prize-winning device capable of giving the starting condition of the spare game based on the prize- winning of the game ball. In addition, a normal pattern display 10 is provided as an auxiliary variable display to execute the control of leading the stopping result mode of the variable display as the specific display mode based on prescribed probability and the control of converting the accessory 70 to a second state in connection with the leading of the specific display mode. At the time of forming the prescribed game condition, the control of improving the probability of leading the specific display mode in variable display and the control of switching a random number generating part by a random number changing control means are executed. |
