Cheat mode:
Make a backup copy of the file before proceeding. Use a text editor to edit the "menu.py" file in the "bladescripts" folder. Add the following lines at the end of the file to enable cheat mode:

import cheats
cheats.ActivateMiscCheats()
cheats.ActivateLaserEyes()
cheats.ActivateWeaponGrow()
cheats.ActivateGoreCheatsCheats()
cheats.ActivateLevelCheats()

Start the game, press [F1], enter one of the following codes, then press [F1] again:

Result - Key:

Small sword - 1
Big sword - 2
Big shield - 3
Small shield - 4
Create lightsaber - G
Start lightsaber - K
Change MOV - P
Sleepy Hollow-type gore - H
Mutational-type gore -M
Matrix-type gore - X
Chop head off - J
Toggle invincibility - [F10]
Move camera left - [F5]
Move camera right - [F6]
Level skip - [F9]
Level up - [F8]