Doom 64 Cheats for Nintendo 64
Ener the following code '?TJL BDFW BFGV JVVB' without the quotes then 'Start' the game. Press 'Pause' and go to 'Features' and ALL Levels, ALL Maps, ALL Weapons/Ammo, Max Health and Invincibility will be unlocked.
level 29 RMMJ JCGF QQT6 RY2B
level 30 V85? D9T7 9F?B B8VB
level 31 LMVG HOWR 3CKN X79C
level 32 In the staging area, explode all barrels except the 1st one. Then go to teleporter to come back to begining. Explode the 1st barrel and hurry to the door behind you. If you're fast enough, you will be teleported to stage 32.(this is one of the most difficult stages in the entire game.)