Most of the "in game" word cheats that work on
Wolfenstein 3d SHOULD work in this game.
I Know I+L+M does. (See Wolfenstein 3d...)
To get an easier game why playing press TAB+G+F10 at
the same time.
For cheats in Spear of Destiny sequel, load the game
by typing "SPEAR DEBUGMODE".
The same LEFT SHIFT+LEFT ALT+BCKSPCE combination invokes
cheat mode, with the standard wolfenstein TAB cheat keys