Mega Man 4
Released: Jan 1, 1992
  • Famicom
  • NES
  • Cheats

Mega Man 4 Cheats, Codes & Secrets

Last Updated on Aug 16, 2023

This page contains cheats, hints, Easter eggs, secrets, and tips for Mega Man 4. We will continually update this page when we come across more useful cheats and tips.

Mega Man 4 Cheats For NES

Boss Weakness & Boss Order

The following list shows the easiest order to defeat the bosses in along with what their weakness is or what weapon should be used on them.

Boss Boss Weakness
Toad Man Mega Buster
Bright Man Rain Flush
Pharaoh Man Flash Stopper
Ring Man Pharaoh Shot
Dust Man Ring Boomerang
Skull Man Dust Crusher
Dive Man Skull Barrier
Drill Man Dive Missile


To enter passwords, go to PassWord on the main menu and enter the corresponding password to the password effect you desire.

Password Effect Password
Ring Man defeated A2, A3, A6, B6, D1, E3
Dive Man defeated A2, A3, A5, A6, E1, E3
Skull Man defeated A2, A3, A5, A6, E3, F2
Pharaoh Man defeated A2, A5, A6, B4, D1, E3
Bright Man defeated A3, A5, A6, C2, D1, E3
Toad Man defeated A3, A5, A6, B1, D1, E3
Drill Man defeated A2, A5, A6, C3, D1, E3
Dust Man defeated A2, A3, A6, C5, D1, E3
All bosses defeated, all weapons and items A1, A4, B5, E2, F1, F3
Wire Adopter, Balloon Adapter A2, A3, A5, B2, D1, F3

Mega Man 4 Game Genie Codes

The following cheat codes are for Game Genie. These can be used on a Nintendo Entertainment System (NES) with a Game Genie device or you can use these on any emulator that supports Game Genie Codes. If you want a Game Genie Device, you can always check on Amazon for one.

Cheat Effect Cheat Code
Infinite energy (health) EUNGZAEP
Infinite lives SZUGUAVG
Infinite weapon power GXENESOO
Invincibility AUUAIPAP
Jump higher AAKEYPIE
Move super fast ALIENE
No charge Mega Blast AEOAIEPA
Slide faster GEOAGPZA
Slide for longer periods YXEAIOZO
Start with 6 lives IAUKZIZA
Start with 9 lives AAUKZIZE
More Cheats: NES