| 摘要 |
PROBLEM TO BE SOLVED: To suppress an excessive expectation feeling during a game under a bonus mode. SOLUTION: A mode is shifted to the big bonus(BB) one when a big hit is won in an electronic lottery unit 36 during the game in a normal mode. In the BB mode, the game is played in a state with high hit occurrence possibility while a fixed condition is satisfied. An A-counter 41 counts the number of discharged whole allotment medals by comprising the game in the normal mode. A B-counter 42 counts the number of the allotment medals which are discharged in the BB mode. A CPU 20 operates a prize-winning role adjustment arithmetic unit 38 so as not to extremely enlarge the count value of the B- counter 42 compared with the count value of the A-counter 41 by referring to the count values, ends the game under the BB mode and adjusts hit kinds under the normal mode.
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