| 摘要 |
PROBLEM TO BE SOLVED: To provide a pinball game machine which effectively increase player's expectation of a transition to the next round in a low probability round during a specific game state and his/her willingness to play the game. SOLUTION: The pinball game machine, which produces high probability rounds where the probability to proceed to the next round is high and low probability rounds where the probability to proceed to the next round is low compared with the high probability round, controls movable members 72a, 72b provided on a movable prize winning device to operate in a high probability operation mode where the pinball game machine is operated in the high probability round only at a prescribed timing at least during a part of the low probability round between the end of the high probability rounds determined by a condition determination means and the limit number of times. The high probability operation mode includes a plurality of operation modes with different probabilities of the entering of a game ball into a specific region to trigger the transition of the round. COPYRIGHT: (C)2004,JPO
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