| 摘要 |
PROBLEM TO BE SOLVED: To prevent reduction of interest by reducing a feeling of unsatisfaction that may be generated during an additional game.SOLUTION: A presentation is performed in a predetermined presentation mode in accordance with a role selected by internal lottery which is executed for each game. When a predetermined winning role is selected by internal lottery, any one of a plurality of presentation modes is determined in a mutually different selection probability. Execution lottery of a prime presentation or a supreme presentation is performed in a predetermined probability and when a player wins in this lottery, a game is played which is capable of avoiding the end of a replay time that may be continued until a predetermined end condition is satisfied or a replay time that may be continued until a bonus role is selected by internal lottery. At least in a normal game state, the game may be controlled into a supreme lottery state in which the player wins at all the time when the prime presentation lottery is performed, into a high-probability lottery state in which the player easily wins in the prime presentation lottery or the supreme presentation lottery, and into a low-probability lottery state in which the player hardly wins in both the prime presentation lottery and the supreme presentation lottery. |
