Tested: Yes

No special loading technique required.  Load the game, 
once inside, type any of the following codes:

QUICKEN - God Mode!

RAMBO - All Weapons

KITTY - Clipping Mode On/Off

MASSACRE - Kill All Monsters on current level

COCKADOODLEDOO - Chicken Mode (Turns you into a chicken)

SKEL - All Keys

PONCE - Full Health

SHAZAM - Tone of Power (lasts 30 seconds)

ENGAGEel - Warp to episode [e] level [l].  For example, 
if you wanted to go to episode 3 level 2, you would type 
ENGAGE32.

RAVMAP - Shows entire map in map mode, type it a second 
time, and you'll see all monsters.  

GIMME - Activates extra stuff.  You will be asked for an 
item [A-J], see below.
A - Ring of invulnerability
B - Shadow sphere (partial invisibility)
C - Quarts flask (7 chain links of health)
D - Urn 
E - Tone of Power (Book)
F - Torch (provides light)
G - Time bomb of the ancients
H - Egg of morphing (turns monsters into chickens, and   
  they will peck you to death).
I - wings of wrath (allows you to fly)
J - Orb (restarts level)

Then you will be asked for how many of that item (1-9).
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