| 摘要 |
In a game system having a display unit capable of displaying a game screen ( 100 ), an input unit for supplying a signal corresponding to a player's operation, and a game controller for executing a predetermined game on the screen of the display unit with reference to an output signal from the input unit, in which the game controller selects a predetermined number of trump cards ( 110 . . . 110 ) as the symbol to be displayed on the game screen from a predetermined selection candidate group, controls a dividend for a player based on a combination of the selected cards ( 110 ), and controls a probability of a dividend by adding or removing at least the joker ( 110 a) as one common symbol which can be used as a plurality of cards ( 110 ) to or from the selection candidate group, according to the outcome of the game.
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