This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "defuser.ini" file in the game directory. Set a key binding to the following codes (for example, "F10=fly"). Then, press the corresponding key during game play to activate the corresponding cheat function. Note: Any active codes are disabled when a new area loads or intermission sequence plays. (mode on the left, code to type in on the right)