Affiliates:



Mega Man 4


WARNING: do not copy these codes to other sites!
1Start With 1 LifeAAUKZIZA
2Start With 6 LivesIAUKZIZA
3Start With 9 LivesAAUKZIZE
4Infinite LivesSZUGUAVG
5Infinite "Energy" Pods On Pick-UpGXNPZTVG
6Instant Megablast!AEOAIEPA
7Longer SlidingYXEAIOZO
8Shorter SlidingZOEAIOZP
9Faster SlidingGEOAGPZA
10Mega Man Mega-Jumping!AAKEYPIE
11Infinite Weapon PowerGXENESOO
12Don't Take Damage From Bad GuysGXVEIPSA
13Faster RunningZANKPTPA
ZEVALLPA
14Infinite Energy (Invincibility)1EUNGZAEP
15Start With Infinite Rush JetXUNGZAEP
16Start With Infinite Rush MarineUUNGZAEP
17Infinite Rush CoilOUNGZAEP
18Start With Infinite WireSUNGZAEP
19Start With Infinite BalloonsVUNGZAEP
20Start With Infinite Time Stopper (Bright Man)KUNGZAEO
21Start With Infinite Dive Missile (Dive Man)NUNGZAEP
22Start With Infinite Skull Barrier (Skull Man)SUNGZAEO
23Start With Infinite Ring Boomerang (Ring Man)EUNGZAEO
24Start With Infinite Drill Bombs (Drill Man)OUNGZAEO
25Start With Infinite Rain Flush (Toad Man)KUNGZAEP
26Start With Infinite Dust Crusher (Dust Man)XUNGZAEO
27Start With Infinite Pharaoh Shot (Pharaoh Man)UUNGZAEO
28No MusicEKNGZAEP
Miscellaneous Codes
29Music Changes Randomly When You Shoot2IVOAIEPA
30No Sound When You Charge Your GunPEOAIEPA
31Mega Man Does Not Flash When You Charge Your GunGUOAIEPA
32Mega Man Flashes BrighterZOOAIEPA
33Mega Man Flashes In Cool Color CombinationsZXXAPEZK
ZXXAZEZK
34Shows There's Only 2 Bosses Left To Defeat, But You Don't Have Their Weapons Until You Use The PasswordVKTALO
35Makes The Capcom Logo Go By FasterNXEITE
36Pick A Boss And Start At Dr. Cossack's CastleGXKAAA
37Has Weapon And Bosses Health Always On ScreenPIEAAT
38Start With Some Weapons3VOUAGA
39Enter A Screen, Leave And Return And All The Enemies Will VanishPAPALA
40Start At Dr. Corsak's CastleOAUKAI
41Shows Most Bosses Are Defeated4AEOETA
42When You Get Hit, The S.E. Are Of Dr. Wily's SpaceshipVKYAAO
43Small Weapon Capsules Teleport You To The 2nd Half Of The Stage No Matter Where You AreTVZUOG
44Small Health Refills Your Health CompletelyTVZLXG
45Large Health Refills Your Health CompletelyTVZLOG
46Small Weapon Capsule Refills Your Weapon CompletelyTVZLKG
47Large Weapon Capsule Refills Your Weapon CompletelyTVZLUG
48Walkthru (Can Get Hurt Once In Awhile)YELAZO
49When You Get Hit, Move A Lot Faster For A Couple Of SecondsVKTALU
50Rapid Fire And The Bosses Barely MovePILAUI
51Kill An Enemy In One Shot (Not Bosses - Can't Slide)ZTGAAP
52Move SuperfastALIENE
53Charge Your M. Buster And You'll Have Rapid FireOKNAKK
54Walkthru When You Hold The B ButtonVKLEGO
55Even Though It Shows 0, Start With Infinite E-TanksOSVOTV
56Even Though It Shows 0, Start With 200 E-TanksPEVOTV
57Start With All Weapons5ETKPUO
58All Rush Are Blue ColorAZOOSA
59Enemies Drop The Large Weapon Capsule EverytimeOKOLOK
60Enemies Drop A 1-Up EverytimeOKOLEK


Notes
1NOTE: If you are using any of these codes with a real NES, then you can only use one code at a time. But if you are using these codes with an emulator, you can get all of the special weapons by entering the codes for each special weapon you want, then turn each code on, then off (while playing the game). Which ever code is left on, you will have infinite amount of that weapon.
2The first shot in each level may make you do a neat slide kick. WARNING: Charging your gun is likely to **PERMANENTLY** set the music; even if you change levels, pause, die, etc. it will be stuck on the same tune.
3You'll need to use the password it gives you.
4But you don't have their weapons. Can defeat most enemies and bosses in 1-3 shots. Don't charge your M. Buster.
5You'll start with a couple of invisible weapons. But when you refill the energy of your weapons, more will become available to you by moving the cursor around.


Credits
Galoob1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
Tony Hedstrom14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
zazer@earthlink.net29, 30, 31, 32, 33
Gedowski34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60