GAME MACHINE

PROBLEM TO BE SOLVED: To obtain a game machine capable of reducing possibility of performing fraudulent acts such as attachment of a fraudulent tool into a communication path between a main control board and a sub control board.SOLUTION: A game machine comprises: a command-division-type transmission part 128 that divides a control command into multiple divided commands and separately transmits the divided commands through a plurality of mutually-independent communication paths 310A to 310C provided between a main control board and a sub control board; and a command-combination-type receiving part 226 that receives each of the transmitted divided command according to each communication path, combines them with one another and decrypts them. Further, the machine transmits and receives an undivided control command through another communication path, and when the control command decrypted by the combination-type receiving part 226 and the undivided control command do not coincide with each other, it determines that a fraudulent control command has been transmitted.