Mega Man 4 - Weapon / Items Game Genie Codes (USA)

This page contains the Game Genie codes I have for Mega Man 4 (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.

If you don't see the code you want on this page, I recommend you return to my Mega Man 4 Guides Index and choose a different section.

 

Always Shoot Full Megabuster: AEOALAGT

Always Have 10 E-Tanks: VENOEASZ

Always Shoot Full Pharaoh Shoot: PGNPZEYK

Always Shoot Megabuster: LXKESKAP

Automatically Shoot: EIUAUIEY
Disable this to climb ladders

Charge M. Buster And You'll Have Rapid Fire: OKNAKK

Collectable Items Never Disappear: AVSUEUVI
They only disappear when you leave the screen or collect them

Hit Almost Anywhere: EOXNSZEL

Infinite E-Tanks: SXNPZTVG

Infinite Weapons: OUENESOO

Items And Eddie Always Re-Appear: AAEAGOPY

Large Health Capsules Refill Health Completely: TVZLOG

Large Weapon Capsules Refill Weapon Completely: TVZLUG

Megaman Can Have Up To 5 Balloon Weapons On Screen Instead Of 3: IAXEUYLA

One Hit Kill Alternative: GZUALLEL

One Hit Kills: EPUALLEL

One Shot Can Kill Multiple Enemies (And Takes Less Shots): ESNAGZEY

Shoot A Normal And Charged Shot At The Same Time: EUOAGAEP

Shots Pierce Through Most Enemies: SXSYKKOO

Small Health Capsules Refill Health Completely: TVZLXG

Small Weapon Capsules Refill Weapon Completely: TVZLKG

Start With 200 E-Tanks: PEVOTV
It will show ingame as 0 but that's incorrect

Start With All Weapons: ETKPUO
When you refill the energy of a weapon move your cursor around the weapon window to unlock more

Start With Infinite E-Tanks: OSVOTV
It will show ingame as 0 but that's incorrect

 

Hit Anywhere
Works on both normal enemies and bosses

APKYKXOU
ATKYSXAZ

 

Destroy Any Enemy/Boss With One Shot

AASAGOIA
AASELPTA
AAUAGLIA

 

Start With Rush Jet, Rush Marine, Wire, And Balloon

XTUKISOX
AZUKTSKP
YYUKYISE
VYKGAIOL
OZNNYVNN
KOEYAVNN
SEEYPVNY
OUEYZVNY
SEEYLVNY
XUEYGVNY
SEEYIVNY
UUEYTVNY
SEEYYVNY
SUENAVNY
SEENPVNY
VUENZVNY
AVENLVNY