| 摘要 |
PROBLEM TO BE SOLVED: To prevent a player's expectation from being reduced when there are preservation balls displayed with symptom preservation.SOLUTION: In a preservation ball 1 and a preservation ball 2 in which variations are executed in advance, normal preservation display [○] is displayed. In a thirdly-stored preservation ball 3, it is determined, by preceding determination, that a non-zone performance (for example, a normal loosing performance and a ready-to-win performance ) not being a continuous performance should be executed, and symptom preservation display [black circle] high in expectation is displayed. In this state, a player expects that a zone performance (high-zone performance or a low-zone performance) high in expectation may be executed from a variation prior to a variation of the preservation ball 3. A high-excitation performance is executed before the start of the high-zone performance. Furthermore, a low-excitation performance is executed before the start of the low-zone performance. |
