| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine not impairing a player's interest, constituted to carry out an internal lottery by a lottery means by individually rotating a plurality of reels with a plurality of symbols displayed, to stop each reel individually by the operation of a stop button and to win a prize when the internal lottery results in a hit and the symbols arranged on a specified stop line are a specified combination, and provided with a ball discharge rate setting means for alternatively setting a ball discharge rate in at least three stages from a minimum value to a maximum value. SOLUTION: This slot machine is provided with a lottery data table corresponding to a minimum ball discharge rate, and a lottery data table corresponding to a maximum ball discharge rate. When the ball discharge rate is set to an intermediate ball discharge rate, either one of the lottery data table corresponding to the maximum ball discharge rate and the lottery data table corresponding to the minimum ball discharge rate is selected at a specified ratio to realize tire intermediate ball discharge rate.
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