| 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 registrating 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 encrypts the command by interchanging the data of bytes constituting the command in a predetermined encryption procedure, and the command decryption means 71a is constituted to decrypt the encrypted command in a predetermined decrypting procedure. |
