| 摘要 |
PROBLEM TO BE SOLVED: To provide a player with such unprecedented game properties as the content of control of a game device varies according to game media. SOLUTION: The game device comprises a means for receiving an IC token (a game medium) and a means for reading symbol data from an IC chip in the received IC token. If the symbol data stored in the IC chip in the received IC token are the data of a circular symbol, the mode of the play is changed to a control mode to execute a jackpot lottery. If the symbols data are other than the circular symbol, the mode is not changed to the control mode to execute the jackpot lottery. COPYRIGHT: (C)2008,JPO&INPIT
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