Type in the code at any time during game

• IDBEHOLD-Displays menu (followed by A, I, L, R, S, or V for choice)
• A=Full Automap (computer map)
• I=Partial invisibility
• L=Light amplification visors
• R=Anti-radiation suit
• S=Strength (Berserk)
• V=Invulnerability
• IDCHOPPERS-Get chain saw
• IDCLEV-Warp (followed by episode number and level number)
• IDDQD-Invincibility
• IDDT-Toggles Automap between normal, full, and full with objects
• IDFA-Full ammo and all weapons but no keys
• IDKFA-Killer F**king Ammo (Max all ammo and weapons)
• IDMYPOS-Displays your bearing and coordinates in hex
• IDSPISPOPD-No clipping mode (walk through walls)