| 摘要 |
PROBLEM TO BE SOLVED: To provide a comfortable game feeling by a player by adjusting the display time of a result corresponding to the time required until the prescribed number of game balls enter and adjusting the ball hitting speed of the next time. SOLUTION: Time required for ball hitting is monitored in a ball hitting monitoring means 25, time required for ball entry is monitored in a ball entry monitoring means 21 and the results are respectively stored in a ball entry time storage means 31 and a ball hitting time storage means 34. A display time decision means 22 decides the display time corresponding to the time required for ball entry. A ball hitting interval decision means 23 decides the ball hitting interval of the next game by the time required for ball hitting, the time required for ball entry, past game time required for the gams in the past and the display time decided by the display time decision means 22, and stores it in a ball hitting interval storage means 33. In the next game, a ball hitting device 40 hits the game balls by the ball hitting interval.
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