| 摘要 |
PROBLEM TO BE SOLVED: To enhance an expectation degree by making a performance by a performance form in a prescribed stage out of stepup prenotification performances associate with a ready-to-win performance, and to increase excitement and enjoyment of a game.SOLUTION: When a stepup prenotification performance for gradually changing a performance form from a first stage to a plurality of stages (for example, three stages) following a preset order is executable and a ready-to-win performance is executed, a normal ready-to-win state, a long ready-to-win state and a super ready-to-win state which are executed succeeding to the normal ready-to-win state, and a full-rotation ready-to-win state become executable. Furthermore, in the case of a jackpot, a performance (for example, performances of steps C1, C2 at a final third stage) by a performance form in a prescribed stage out of stepup prenotification performances is executed at timing at which the ready-to-win performance is developed to the long ready-to-win state, the super ready-to-win state and the full-rotation ready-to-win state from the normal ready-to-win state at a ratio higher than the case of loosing. |
