| 摘要 |
PROBLEM TO BE SOLVED: To increase player's expectations to a special game by shifting a presentation background image.SOLUTION: A game machine controls presentation in a normal presentation mode M1 and probability variable presentation mode M2, and shifts the mode from the normal presentation mode M1 to the probability variable presentation mode M2 with a big winning game as a trigger. In the normal presentation mode M1, any presentation background image is displayed from among a first normal presentation background image, second normal presentation background image, and third normal presentation background image. When normal shift is performed while the first normal presentation background image is displayed, the first normal presentation background image is shifted to the second normal presentation background image (411). On the other hand, when a special shift is performed while the first normal presentation background image is displayed, the first normal presentation background image is shifted to the third normal presentation background image (421). Also, in the probability variable presentation mode M2, a probability variable presentation background image is displayed. When the special shift is performed in a big winning variation, display of the presentation background image at the shift destination due to the special shift is ended with the big winning variation (one variation). |
