| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which improves the playing potentialities during the jackpot games. SOLUTION: The game machine 1a has a mobile prize-winning device 30 having an openable or closable prize-winning slot. When the preset jackpot conditions are established, the game machine 1a executes the jackpot game in which the prize-winning period (round) and the non-prize-winning period (interval) are repeated alternately by the given frequency. In the game machine 1a, the operation of opening or closing a flap 43 at a fixed interval as each round arrives and one round is ended when the open/close operations are done 18 times or ten game balls win the mobile prize-winning device 30. The game machine 1a starts to store the residual frequency of opening or closing the flap 43 with a certain round in which the winning by ten game balls is made before the frequency of opening or closing of the flap 43 reaches 18. At any round later, when the frequency of opening or closing the open/close wing 43 reaches 18, the operation of opening or closing the flap 43 is continued using the residual frequency of opening or closing stored. COPYRIGHT: (C)2005,JPO&NCIPI
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