Developer Mode
Create a shortcut to the game with -DEVMODE appended to the end of the target (put a space between the target in quotations and -DEVMODE). Launch the shortcut to play the game in Developer Mode.
While in Dev Mode, you can access these cheats by pressing the corresponding key: All Weapons: P 999 Ammo: O Fly Mode (no clipping): F4 Fly Mode (clipping): F3 Quick Save Position: F9 Warp to next Checkpoint: F2 Third Person View: F1 Extra Details: F11
