Doom 2

IDDQD (god mode)

IDKFA (all weapons,ammo,and keys)

IDFA (all weapons and ammo)

IDCLIP (no clipping mode)

IDCHOPPERS (Chainsaw)

IDMYPOS (get coordinates)

DEVPARM (put system into Developer Mode)

IDDOOMISDUMB (?)

IDCLEV[level] (warps you to desired level)

IDMUS[level] (changes music for current level to song ## "can be from 1 to 32")

IDBEHOLDL (light amplification gogles)

IDBEHOLDS (berserk strenght)

IDBEHOLDM or IDBEHOLDA (computer map)

IDBEHOLDR (radiation suit)

IDBEHOLDI (invincibility)

IDBEHOLDV (invisibility)

(on the map)=>IDDT (shows the whold map),IDDT (shows all items),IDDT (reset to normal)