| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine performing a game by enclosing and circulating a prescribed number of game balls, the game machine allowing early detection of an illegal act or the occurrence of abnormality and then coping with it when illegality is performed during the game or even when the abnormality has occurred.SOLUTION: An enclosed type game machine includes: a shooting ball sensor detecting a game ball shot to a game region as a shot ball; an out ball sensor detecting a game ball having flowed into an out hole and each winning hole of a game board as an out ball; and a threshold value-setting means setting a threshold value VH (an upper limit value) and a threshold value VL (a lower limit value) of the number TT of remaining balls remaining in a game board during the game calculated by subtracting a total out ball number from a total shot ball number. If the number TT of the remaining balls is the threshold value VH (the upper limit number) or above (S52), the enclosed type game machine executes first extra-threshold value processing (S54), and if the number TT of the remaining balls is the threshold value VL (the lower limit value) or below (S62), the enclosed type game machine executes second extra-threshold value processing (S64). |
