PURPOSE: To prevent a dishonest, act, etc., by classifying valuable data which a game customer has into valuable data which can be converted to the amount of memory, and valuable data which can be converted to the number of balls and controlling the discharge of a card, in a card type PACHINKO machine in which PACHINKO balls are enclosed in the machine.

CONSTITUTION: In a card type PACHINKO machine in which many PACHINKO balls are enclosed in the machine, the game is allowed under the condition that holding ball information of a game customer exists at the time when a magnetic card is inserted into a card insertion port 40 of a card installation device 4a. In this case, when the magnetic card is inserted and set to the card insertion port 40, a discrimination code of this card is read, and based on this discrimination code, first and second valuable data are received from a central management device, and first valuable data, and second valuable data are displayed on a money amount indicator 41, and a ball number indicator 42, respectively. Also, the game is executed by converting arbitrarily first valuable data to second valuable data, and in the case both the valuable data become '0', the card is discharged as game impossibility.