| 摘要 |
PROBLEM TO BE SOLVED: To display a subsidiary screen especially on an image display device displaying patterns and varyingly display information based on reserved balls, and subsidiary patterns for example on the subsidiary screen. SOLUTION: A game control means 20 has a reservation random number storage means 400 and a subsidiary screen display means 500. The reservation random number storage means 400 is intended to receive a random number by a random number acquisition means 100 on the basis of detection of a shot ball by a specific winning detection means 40 and store the random number as a reservation random number during varying display of patterns by a pattern varying display means 200. The subsidiary screen display means 500 is intended to display a subsidiary screen 92 in a part of a screen 90 of the image display device 60 subject to storage of the reservation random number in the reservation random number storage means 400. |
