Doom (Version 1.1) Codebreaker Codes (NTSC-U)
This page contains CodeBreaker cheat codes for Doom (Version 1.1) (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 CodeBreaker 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). There are three popular choices for Emulation on the PS1, RetroArch, Duckstation and ePSXe. Follow the links provided to learn more about how to add/use these codes with the Emulator of your choice. If you don't see the code you want on this page I recommend you return to my Doom (Version 1.1) Guides Index and choose a different section.
Mega Rapid Fire: 800A88E0 0001
Unlimited Bullets: 800A8884 0064
Unlimited Shotgun Shells: 800A8888 0064
Unlimited Rockets: 800A8890 0064
Unlimited Plasma: 800A888C 0064
Have Shotgun: 800A8868 0001
Have Double-Barrel Shotgun: 800A886C 0001
Have Chaingun: 800A8870 0001
Have Rocket Launcher: 800A8874 0001
Have Plasma Rifle: 800A8878 0001
Have B.F.G. 9000: 800A887C 0001
Have Chainsaw: 800A8880 0001
Have Red Key: 800A8834 0001
Have Blue Key: 800A8838 0001
Have Yellow Key: 800A883C 0001
Night Vision On: 800A8830 0001
Turn On Level Map: 800A882C 0001
More Light: 800A8832 0001
Have All Guns
50000704 0000
800A8868 0001
Infinite Ammo
50000404 0000
800A8884 0064
Invincible
800A881C 0001
800A8814 0001
800A8810 0064