| 摘要 |
PROBLEM TO BE SOLVED: To enable supply of game balls without cash, which implements a prize trading function more advantageous to players, game hall operators, and third parties than ever. SOLUTION: With respect to supply of game balls in independent island device game machines, debit card payment is used. A debit card payment system stores as points the numbers of prize balls, or the results of games, counted by an independent island device game machine, and debit affiliated stores in cooperation with game halls provide goods as prizes to the extent of points stored in the debit card payment system.
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