Mega Man - Weapon / Items Game Genie Codes (USA)

This page contains the Game Genie codes I have for Mega Man (USA), a game for the original NES (Nintendo Entertainment System). If you're playing with an emulator you'll typically be able to put these codes into the program directly through a built in option. Any of you who are old school and playing on a physical console, you'll have to purchase a physical Game Genie cheat device to use these codes.

When it comes to emulation for the NES you have 3 good options to choose from. You can do RetroArch, Nestopia or MesenCE, follow the links provided to learn more about how to use the codes you find on this page on the Emulator of your choice. If you don't see the code you want on this page, I recommend you return to my Mega Man Guides Index and choose a different section.

 

Press Left or Right to shoot any weapon in desired direction instead of B button: ETUOLIZA
The code doesn't work when you're on the ladder

Bomb From Bombman's Weapon Explodes Sooner: YSKZLYAE

Collectable Items Never Disappear: SUULTVVN
Unless you leave the screen... Or collect them.

Double M Step Time: NNUZOEKO

Equip Gutsman's Weapon And Just Press The B Button To Auto Have A Boulder Ready To Throw: ZPXNGNNY
Use with infinite weapon energy

Hit Anywhere: GXNKVAEP
Works for bosses, can enter the teleportation device

Infinite M Step Time: SUOXAVVS
You must disable it after leaving the current screen so you can use M steps again

Infinite Weapons: SUSZSASP

Infinite Weapons (Once You Have Them): IESZXESN

Shots Pierce Through Enemies: SXUKOOSO

Start With 255 Weapon Energy: NYSOLEGO

Start With Bombman's Weapon: POKPGA

Start With __ Weapon: ?EKOZAAA
Replace the ? above with the weapon you want from the list below. You must defeat a boss at the beginning of a stage to proceed
P - Cutman
Z - Iceman
L - Bombman
G - Fireman
I - Electman
T - Gutsman
Y - Ledge Weapon (Need To Die Once For It To Show Up)

 

One Hit Kills

AAOGSOLA
ESSUNTEP

 

Have All Weapons (Bosses are still active)

AEULTXVT
AAOULKPZ
AEXLPPZI
OXXLPZEN