The ‘(M)’ codes cannot be turned off or deleted. These codes are called ‘Master’ or ‘Enable Codes’ and they MUST BE ON for Action Replay to function properly. Each game title for which we`created Action Replay codes has an (M) code. When manually inputted, the (M) code must be the first cheat entered above all others.
NOTE: This isn`t an issue with the very latest version of Action Replay GameCube, which offers all the codes preinstalled and does not offer facilities for inputting your own.