| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of performing an effective utilization of error information having occurred due to a fraudulent act.SOLUTION: A game machine comprises a sub control circuit 70. This sub control circuit 70 includes: a sub CPU 71 for receiving a command enciphered by a main control circuit; command decryption means 71a for decrypting the command received; error information registration means 71e for registering error information on condition that an error factor is contained in at least a decrypted command; and error information history display means 71g and a liquid crystal display unit 5 for displaying the error information. The main control circuit performs calculations of predetermined data and command data by a predetermined calculation, and encrypts the calculation result by replacing the result into the command data. The command decryption means 71a is constituted to perform the calculations of the predetermined data and the command data by a predetermined calculation, and to decrypt the result of the calculation by replacing the same by the command data. |
