| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique which can promote the consumption of surplus balls by enabling the addition of the surplus balls held by a plurality of players in a game parlor. SOLUTION: In a surplus ball managing unit for managing the surplus balls in the game parlor, players' information containing the players' identifying information for specifying the players, the number of surplus balls held by the players, prize information containing the exchangeable amount of money and information on the addition receiving date are stored into a memory unit. The plurality of players extracted from the players' information is grouped by friends, families, companions, and the like. The amount of money left is calculated per player. Confined to the case where the current date is contained in the information on the addition receiving date, a plurality of players who desire to add up the amount of money left is specified and it is determined whether or not the plurality of players specified belong to a same group. When all of the players are decided to belong to the same group, the amount of money left is added up and it is determined whether or not the sum of money is exchangeable for a prize. The result in the determination is displayed. COPYRIGHT: (C)2005,JPO&NCIPI
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