Cheat mode:
Type one of the following codes during gameplay:

Result - Code:

Full health - ponce
Toggle power-up mode - shazam
Kill all monsters in level - massacre
Chicken mode - cockadooledoo
Changes map mode - ravmap (at map screen)
(f1] creates screenshot - ravpic (at title screen)
Invincibility - quicken
All weapons, ammo - rambo
All skeleton keys - ravskel
Walk through walls - kitty
Level select - engage(episode number)(level number)
Deathmatch level - engage41
Sixteen of each inventory item in the game1 - gimmez0
Ring of Invulnerability - gimmea
Shadowsphere - gimmeb
Quartz Flask - gimmec
Mystic Urn - gimmed
Tome of Power - gimmee
Torch - gimmef
Time Bomb of the Ancients - gimmeg
Morph Ovum - gimmeh
Wings of Wrath - gimmei
Chaos device - gimmej
Sound debug - noise
Ticks-per-frame counter - ticker
Instant death - iddqd
No weapons, ammo - idkfa