| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can prevent the reduction of an interest in a game while giving a new game property.SOLUTION: It is previously regulated for each of a special round game that a first big winning port is opened during at least first and second round games, and that either a first big winning port or a second big winning port having a special area therein is opened during a third or later round game. If it is confirmed that a game ball has passed through any of plurality of role operational areas, the execution frequency of the round game is selectively determined. In any round game in the special game to be executed on the basis of the determined execution number, when it is confirmed by the opening/closing of the second big winning port to be executed on the basis of round play pattern regulating means that the game ball has passed through the specific area, after the execution end of the special game, it is performed to transfer from the low-probability state, in which the winning of the internal lottery is obtained in an ordinary probability, to the high-probability state, in which the winning of the internal lottery is obtained in a higher probability than that of the low-probability state. |
