| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pinball machine capable of improving a savor by the opening/closing control of a variable ball entrance. <P>SOLUTION: A pachinko game machine (10) performs the opening/closing control of openable and closable left big winning port (35) and right big winning port (39) provided in a game area where game balls can tumble. The pachinko game machine (10) selects one big winning port from the left big winning port (35) and the right big winning port (39) and also decides openable time during which opening is possible as one round. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
