To enhance a game player's awareness of participation in a game by varying the contents of the game.

A two-round game is performed for winning in a first start pocket, and a seven-round game is performed for winning in a second start pocket. Meanwhile, in the time reduction section, the variable display of a symbol continues until the count reaches 100 times for winning in the first start pocket 12, and it continues until the count reaches 30 times for winning in the second start pocket 13. The game player can choose a game ball-acquiring method between stress on stability and stress on continuous prize winning by the option of taking winning in the first start pocket or winning in the second start pocket.

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