Cheat code

There are various cheat codes in Doom. They are activated by typing the correct series of letters in-game (some source ports support activating additional cheat codes from the console).

The cheat codes were added to the game by Dave Taylor.

How To Use
To use the cheat codes in the game, just type the code while playing. If typed correctly, a message should appear at the top of your screen, and your status bar, face, and ingame view may also change depending on the nature of the code.

Doom
See SPISPOPD for the origin of the code.