Spear of Destiny
Load the game as follows: SPEAR -DEBUGMODE
Once in the game, press the following keys: LFT-SHIFT+LFT-ALT and BACKSPACE
A message pops up stating debug keys are now active.
TAB+B (Change Border Color)
TAB+C (Change Characteristics)
TAB+E (End Level)
TAB+F (?)
TAB+G (God Mode)
TAB+H (Subtract Health)
TAB+I (Free Items)
TAB+M (Memory Usage)
TAB+N (Clipping Mode On/Off)
TAB+P (Pause Game)
TAB+Q (Quit Game)
TAB+S (Slow Motion)
TAB+T (Table of sprites, graphics and their locations)
TAB+V (Add VBL's [0-8])
TAB+W (Warp to a level [1-21])
TAB+X (Extra Stuff)
The folks at Apogee/ID were kind enough to give us a back door to the program. If you are asked for information from the manual, simply type JOSHUA and you will be allowed in the game.
You can also press and hold the I,L,M keys and you'll get all keys, 100% health, 99 ammo. Unfortunately, your score will drop to zero.