| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine stepwisely preventing a player from overdosing on a game. SOLUTION: When an investment amount is not less than 14,000 yen and less than 17,000 yen, balls are put out only after pushing a ball rent button 22 and then pushing an operation button A. The game is progressed and when the investment amount becomes not less than 17,000 yen and less than 19,000 yen, the balls are put out only after pushing the ball rent button 22 and then pushing an operation button B. When the investment amount becomes not less than 19,000 yen and less than 20,000 yen, the balls are put out only after pushing the ball rent button 22 and then pushing an operation button C. When the investment amount becomes 20,000 yen or more, the ball rent is prohibited and even if the player pushes the rent button 22 and the operation buttons A, B and C in any manner, no balls are put out and it becomes impossible to play the game. COPYRIGHT: (C)2005,JPO&NCIPI
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