Duke Nukem: Total Meltdown Action Replay Codes (NTSC-U)
This page contains Action Replay cheat codes for Duke Nukem: Total Meltdown (NTSC-U) for the Playstation 1. Depending on if you're playing this game on a physical console or an emulator will determine how you use the codes found on this page. People using a physical console will need to purchase a physical Action Replay device to use the codes.
Anyone who is using an Emulator will have a much easier time getting these codes to work (assuming your Emulator supports them). One of the most popular Emulators for the Ps1 is ePSXe and if you'd like to learn how to use the codes on this page for that Emulator, check out my how to get cheat codes to work with ePSXe guide. If you don't see the code you want on this page I recommend you return to my Duke Nukem: Total Meltdown Guides Index and choose a different section.
Unlimited Oxygen: 800EC96C 0186
Invulnerability On: 300B52BC 00FF
Max Health: 800EC9D2 0128
Action Debug Camera: 800B5326 0001
Anti-Gravity: 800EC8FC 0400
Fly Mode: 800ECA10 0100
Force Cooperative Play Game Type In Multiplayer Menu: 300B5328 0001
Force Multiplayer Menu: 800B58D8 0258
Have All Keys: 800EC97C 000F
Have Handgun Equipped: 800EC958 0001
Have Shotgun Equipped: 800EC958 0002
Have Chaingun Equipped: 800EC958 0003
Have RPG Equipped: 800EC958 0004
Have Pipe Bomb Equipped: 800EC958 0005
Have Shrink Ray Equipped: 800EC958 0006
Have Devistator Equipped: 800EC958 0007
Have Laser Tripbombs Equipped: 800EC958 0008
Have Freeze Cannon Equipped: 800EC958 0009
Moon Jump (Hold Triangle)
E00B522F 00EF
800EC8FC F424
E00B522F 00EF
800EC8FE FFFF
Complete Level (Press L1 & L2)
D00B61AE 0005
800EC98E 0001
(All Levels) Refill Health (Press Triangle)
D00EC9C4 0001
800EC996 FF00
D00EC9C4 0000
800EC996 0000