PURPOSE: To enable even a beginner to play in the same way as a skilled person by providing an operational information converting means for reading out sequentially continuous operational information to convert it to a operational signal to be outputted.

CONSTITUTION: A game is started by operating a mode selecting switch 44 to convert the operational mode of a controller to the play mode and depressing a start button 35. When a mortal act is displayed during the game, an operation selecting switch 41 is turned on in a desired timing, so that previously registered individual single operational information is sequentially read out of addresses selected by an operation selecting switch 41 of a first memory means 5 to an operational information converting means 8 which converts the respective single operational information sequentially to the operational signal to be outputted. Since the operational signal is the same as operational signal continuously outputted when key switches are sequentially operated, a game machine judges that a command of performing the mortal act is inputted. One time of key operation can output the same signal as that outputted by the sequential operation of a plurality of key switches, so that even an unskilled player can sufficiently enjoy the game.