Press [Ctrl] + Q + L + K at the main menu with the "New Game", "Load Game", "Options", and "Exit" selections to display the console screen. Type 'richen' to enable cheat mode. A message will be spoken to confirm correct code entry.
Press one of the following keys at the indicated screen to activate the cheat function.
Edit characters stats - Game play - [F9]
Edit item numbers - Game play - [F6]
Enter incident number - Game play - [F5]
Enter battle - World map - [F8]