| 摘要 |
Symbol-image windows are arranged in matrix of three rows and five columns. Five game lines to be nominated are provided so as to horizontally and diagonally combine the symbol-image windows. Jackpot winning occurs when identical symbol images are displayed at one of three groups of the symbol-image windows. The first group is constituted of the first to third columns. The second group is constituted of the second to fourth columns. The third group is constituted of the third to fifth columns. When the identical symbol images are displayed at one of the five columns, sub-game winning occurs to award a sub game in which a symbol-image series is rotated again in the central symbol-image window. In another embodiment, ten game lines to be nominated are provided so as to vertically, horizontally and diagonally combine the symbol-image windows.
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