Metroid Game Genie Codes (USA)
This page contains the Game Genie codes I have for Metroid (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 Metroid Guides Index and choose a different section.
255 Rockets On Pick-Up: NNNSXLIE
Always Get The Best Ending: SUEKKOVN
Always Pass Password Check: APEAXVAU
Some codes reset/crash the game
Background Is White: ALZTLT
Beam Has Longer Range: IIAIII
Bomb and destroy any block: ETVSYY
Bombs will also create blocks in the air which is useful for exploration
Bomb Sprite Plus Your Bombs Explode Twice: XXNAPI
Bullets Explode On Contact: PENIYIGE
Missile explosions last longer
Can Use Weapons While Inside A Metroid: AEOOSPPA
Enable NARPAS SWORD Cheat: AAUGSOYA
Infinite health and missiles, can morph into ball and lay bombs. Have ice beam, high jump boots and screw attack.
Enemies Are Frozen (If You Touch Them, You Still Get Hurt): XXUAAA
Enemies Die Automatically: AAKYPSPZ
Enemies Never Unfreeze Once Frozen: SLSYTKVS
Enhanced Space Jump: KAPGEI
Extra energy: YAXGVPLA
Fire Both Missiles And Standard Hot: IIPIIU
Gain 10 rockets on pick-up: ZENSXLIE
Gain 143 rockets on pick-up: NENSXLIE
Gain 15 rockets on pick-up: YENSXLIE
Game Boy Mode: OIKKZKTO
Get Item From Anywhere: AEXSNLTG
Get Pickups From Anywhere: GXENAGEY
You won't see the pick up but you'll hear the sound
Gives You 30 Energy Instead Of 5 After You Kill An Enemy: PPPSSS
High Jump W/out High Jump Boots: ZONGKNAP
Only works when you don't have High Jump Boots
Infinite Health: AEXGXTLA
Infinite rockets on pick-up: SZUILUVK
Invincibility Against Arcing Pellets: AVVNYZAZ
Invincibility Against Dive Bombing Insects: AVUYTZAZ
Invincibility Against Metroids (Can stick to you like glue till you go thro doors): OXEPNOOK
Invincibility Against Most Bad Sprites: AVOYIXSL
Invincibility Against Mother Brain's Shield: ATEPUVSZ
Invincibility Against Reappearing Blocks: AVKYXTAZ
Jump In Mid-Air: GVKGGGIZ
Jump Through Roof: AAVTTKLL
Mega Jump W/out High Jump Boots!: GENGKNAO
Only works when you don't have High Jump Boots
Mega jump with High jump boots!: GENKSYZO
Metroid's Can't Latch On To You: ALUGXTEY
Minimum energy of 30: SXSGNVSE
Normal Gun Is Lower To The Ground: AAESTL
One Hit Kills: AAUTIVIZ
One Hit Kills (Alternate): ALENYTEI
Shoot and destroy any block: IZPSTT
This works best with the straight beams
Shoot once & your body can break breakable blocks & open doors: PPPSII
Enemies will also open doors and break blocks
Shots Pierce Through Enemies: SXSYZZAX
Skip Intro Screen: AAEELATP
Some Enemies Are Killed For You: PPPAAA
Start With All Items And You Are Invincible: ALLGKP
Start With All Powerups: VGUPLUSE
All Doors/Hatches Are Opened
Blue, Red and Yellow doors/hatches are always open
EOEAUUXX
AVEEKLAZ
Always Have Screw Attack Effect
AOOKKSAU
AVXGESEA
Create/destroy blocks with a beam, anywhere
IZPSTT
AAASYT
Default Weapon Can Shoot Long Range
NYXILXGE
NNESAXGE
Easier Bomb Jumping
AANSPTGP
AAVIGPZL
Freezing shot disintegrate enemies
Works for all but bosses
ALKNASLA
AAONPIGA
Infinite Health
SXKKXVSE
SXSGNVSE
Invincible (Bomb Explosions Don't Bounce You)
AEXGXTLA
AENKVIAZ
Jump In Midair
AAUIPEZA
AAOGOIGA
Play As Zero Suit Samus
EEVGGIEY
EEEGKLEY
Start with 99 health
EPXGOPAA
PAXGVPLE
Can Kill Metroid's Without Freezing Them First
IAXOLVNY
IAXOGVNY
IEOPSENY
Invincible (Bomb Explosions Can Bounce You)
AEXGXTLA
VVNKSSPZ
LNNKVIAZ
Hit Anywhere
GXKNZZEL
NYUNYIAX
AAKYLLLA
SXSYZZAX
While Ball Press A To Go Down A Bit Through Floor
AUVSPAAP
OXVSIEPX
ZEVITAGE
SSVSZALU
Able To Jump In Ball Form (Very High)
AUVSPAAP
OXVSIEPX
ZEVITAGE
KXVIYAGZ
TSVSZALU
Invincible
You can still attack enemies and pick up items with this code
EPNVLZKA
PZNVGZZN
AVOYIXSL
EPKYUGAZ
APKYKKKP
Press DOWN To Stand In Air
Works in ball form too
GOKVAGZI
PXKVPKOK
GEKVZGKA
ESKVLGEP
LXKVGGIA
Able To Jump In Ball Form
You can also jump in the air as a ball
ZEVITAGE
AXVSLASZ
VSVSGAGP
NKVSIEPX
XVVSTAGE
AOVSYAEI