Mega Man II box art

Game Boy · cheat codes

Mega Man II cheats & codes

88 codes for Mega Man II on the Game Boy, including Game Genie, GameShark codes.

Mega Man II Game Genie codes

How to use: Galoob's Game Genie plugged in between the console and the cartridge. Type the codes in on its start-up screen, then press Start. In emulators, add them through the cheat menu and choose the Game Genie format if asked.

EffectCode
3/4 Energy72C-557-808
1/2 Energy4CC-557-808
1/4 Energy26C-557-808
Infinite Energy016-024-4C1
Start With 1 Life00B-F87-E62
Start With 4 Lives03B-F87-E62
Start With 6 Lives05B-F87-E62
Start With 10 Lives09B-F87-E62
Infinite Lives018-C55-4C1
Infinite Weapon Energy (All Weapons)00A-174-4C1
Infinite ETanks018-A04-4C1
ETanks Worth Nothing017-544-4C1
Energy Capsules Worth Nothing01B-265-4C1
Extra Lives Worth Nothing007-184-19A
Super Jump040-026-E66
Mega Jump060-026-E66
Slide Half As Far0FF-C87-912
Slide 2x As Far3CF-C87-912
Slide 4x As Far78F-C87-912
Slide Forever (Turn Off To Stop Sliding)014-E96-4C1
Get Hit And Become Invincible For Half As Long1E5-DF4-19A
Get Hit And Become Invincible For 2x As Long785-DF4-19A
Get Hit And Become Invincible For 4x As LongF05-DF4-19A
Get Hit And Become Invincible For The Rest Of The Stage01E-477-4C1

Mega Man II GameShark codes

How to use: GameShark (sold as Action Replay outside North America) codes are entered on the device's menu or in your emulator's cheat menu. Some games need a "master code" or "must be on" code enabled first, so turn that on if a list includes one.

EffectCode
Infinite Energy01A5D0CF
Invincibility013C43CF
Infinite Weapon Energy0198E0CF
Jump Like You're Underwater00021ACF
Infinite Lives0102E8CF
Infinite Crash Bombs01B5E0CF
Have Weapon Modifier 1010?DDCF
Have Weapon Modifier 201??DECF
Infinite M. E.01B5E1CF
Infinite W. D.01B5E2CF
Level Completed Modifier01??DECF
Automatically Beat Level010260CF
E-Tank Modifier010?E9CF
Moon Jump01031ACF
Infinite Weapon Energy (All Weapons)0198E0CF
Slide Forever (Turn Off To Stop Sliding)011E2ACF

Mega Man II More GameShark codes

How to use: GameShark (sold as Action Replay outside North America) codes are entered on the device's menu or in your emulator's cheat menu. Some games need a "master code" or "must be on" code enabled first, so turn that on if a list includes one.

EffectCode
Infinite lives008-C4D-E6E
Start with 10 lives09B-F8F-E62
Start with 7 lives06B-F8F-E62
Start with 2 lives01B-F8F-E62
Start each stage with 1/2x energy49C-55F-808
Start each stage with 1/4x energy25C-55F-808
Infinite energyA75-FDC-B30
Infinite power on all weapons and dog adaptorsA7A-14C-A28
Infinite Lives0109E8CF
Infinite Health01A5D0CF
Infinite Crash Bombs01B5E0CF
Infinite M. E.01B5E1CF
Infinite W. D.01B5E2CF
Moon Jump01031ACF
Invincibility010443CF
InvincibilityC95-CEC-E69
Infinite All Weapons00A-14C-A28
One Hit Kill184-59C-08A 006-129-A29
Hit Anywhere333-F0C-3BE F13-EFC-C4A 003-B2C-91A CD3-CCC-B39
Infinite Weapon Energy0198E0CF
Infinite Lives0102E8CF
Have Weapon Modifier 10101DDCF
Have Weapon Modifier 20101DECF
Automatically Beat Level010260CF
E-Tank Modifier0101E9CF
Slide Forever (Turn Off To Stop Sliding)011E2ACF
Infinite R. C.0198D1CF
Infinite R. M.0198D2CF
Infinite R. J.0198D3CF
Infinite T. P.0198D4CF
Infinite A. R.0198D5CF
Infinite W. D.0198D6CF
Infinite M. E.0198D7CF
Infinite C. L.0198D8CF
Infinite N. E.0198D9CF
Infinite H. A.0198DACF
Infinite M. G.0198DBCF
Infinite S. G.0198DCCF
Bosses die with just 1 hit010004CE
Start With All WeaponsFFC-55F-808 22C-5CF-5D4
Jump To Climb Down050-07E-E6E 002-BEE-6EA
High Jump040-02E-E66
Higher Jump050-02E-E66
Mega Jump070-02E-E66
Super Jump090-02E-E66
Ultra Jump0D0-02E-E66
Title Screen Music ModifierB9D-E6E
Always Drop Item Modifier01E-41E-08B 3EE-40E-F7E 0FE-30E-A2A 18E-2FE-2AA 00E-2AE-A29

Using cheats today

Original cheat devices like the Game Genie, Action Replay and GameShark still turn up second-hand and work with original cartridges. Most modern emulators also have a built-in cheat menu that accepts these formats, so you can toggle codes on and off without extra hardware. Codes can differ between regional releases and revisions of a game; if one doesn't work, try the code list for another version.

Cheats can corrupt save files in rare cases, so back up your saves before experimenting.

Mega Man II walkthroughs & guides

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Cheat codes are from the libretro-database community collection, used under CC BY-SA 4.0; the code tables on this page are shared under the same license. Codes are provided as-is: some may not work on every version of the game.