After Burner II

AKYT-AAHT – Start on stage 2
APYT-AAHT – Start on stage 3
AVYT-AAHT – Start on stage 4
AZYT-AAHT – Start on stage 5
A3YT-AAHT – Start on stage 6
A7YT-AAHT – Start on stage 7
BBYT-AAHT – Start on stage 8
BFYT-AAHT – Start on stage 9
BKYT-AAHT – Start on stage 10
BPYT-AAHT – Start on stage 11
BVYT-AAHT – Start on stage 12
BZYT-AAHT – Start on stage 13
B3YT-AAHT – Start on stage 14
B7YT-AAHT – Start on stage 15
CBYT-AAHT – Start on stage 16
CFYT-AAHT – Start on stage 17
CKYT-AAHT – Start on stage 18
CPYT-AAHT – Start on stage 19
CVYT-AAHT – Start on stage 20
CZYT-AAHT – Start on stage 21
C3YT-AAHT – Start on stage 22
C7YT-AAHT – Start on stage 23
AT0T-AA4T – Almost infinite planes
BJ6A-AA26 – Infinite missiles
AT2A-AA6C – Infinite continues

Alien 3

AACT-CA6J – Game clock frozen (no time limit)
AJBT-AAEY – Start at stage 2 instead of stage 1
ANBT-AAEY – Start at stage 3
ATBT-AAEY – Start at guardian level after stage 3
AYBT-AAEY – Start at stage 4
A2BT-AAEY – Start at stage 5
A6BT-AAEY – Start at stage 6
BABT-AAEY – Start at guardian level after stage 6
BEBT-AAEY – Start at stage 7
BJBT-AAEY – Start at stage 8
BNBT-AAEY – Start at stage 9
BTBT-AAEY – Start at guardian level after stage 9
BYBT-AAEY – Start at stage 10
B2BT-AAEY – Start at stage 11
B6BT-AAEY – Start at stage 12
CABT-AAEY – Start at guardian level after stage 12
CEBT-AAEY – Start at stage 13
CJBT-AAEY – Start at stage 14
CNBT-AAEY – Start at stage 15
CTBT-AAEY – Start at guardian level after stage 15
AJNA-EA3R – Infinite ammo for machine gun
AJMA-EA7C – Infinite fuel for flame-thrower
AJJT-EA2J – Infinite ammo for grenade launcher
AJKA-EA88 – Infinite hand grenades
AMDA-CA4J – Long falls do not reduce energy
ADEA-CAGJ – Falls into turbine fans do not reduce energy
AJFT-AA66 – Never lose radar
A2EA-AA8R – Infinite lives
5DXA-D93N – Ripley jumps higher
YDXA-D93N – Ripley jumps much higher

Alien Storm

EABT-AA4W – Master code, must be entered
AB8A-AACW – Special attack uses no energy
P1DT-BD0R – Normal attacks gain energy instead of losing it
AJ7A-AA3R – Infinite credits
AB9T-CAN0 – Each energy unit is worth 8 times as much
ALXT-AA4Y – Most alien hits do no damage(no life lost on life meter)
AJEA-CA7R – Aliens in shooting gallery do no damage(no life lost on life meter)
ACET-AGH6 – Start on Mission 2, Expel the Aliens
ACET-ANH6 – Start on Mission 3, Alien’s Nest
ACET-A2H6 – Start on Mission 5, Save the Laboratory
ACET-A8H6 – Start on Mission 6, Night Crawler
ACET-BEH6 – Start on Mission 7, Destroy the UFO
ACET-BLH6 – Start on Mission 8, Final Battle

Altered Beast

DCXA-AA22 – Master code, must be entered
FT1T-AA5L – Infinite lives
ATWA-AA8R – Protection against enemy hits, no power lost from power gauge
PA5T-BNT2 – First spirit ball transforms you into an Altered Beast
AA9A-ALN8 – Most Altered Beast punches(Button A) are more powerful against bosses
AA9A-ALPG – Most Altered Beast attacks(Button B) are more powerful against bosses

Arrow Flash

RFLT-A6WA – Infinite lives
ALGA-AA36 – Invincibility
R07A-A6VT – Infinite arrow force shots
CG7A-BAV8 – Robot arrow flash lasts 8x longer than normal
AJCA-AAB2 – Start on stage 2
ANCA-AAB2 – Start on stage 3
ATCA-AAB2 – Start on stage 4
AYCA-AAB2 – Start on stage 5

Batman

E2ET-AA4C – Master code, must be entered
AKFT-AA4Y – Infinite lives
AKYA-AA9G – Infinite Batarangs
RYFA-C6VR – Guns don’t hurt
AKYT-AA5L – Infinite rockets for the Batwing
B2AT-CA46 – Punches, knives and guns don’t hurt
AKYT-AA7R – Infinite rockets for the Batmobile
HEET-BJX2 – Start on Axis Chemical Plant level
HEET-BNX2 – Start on Flugelheim Museum level
HEET-BTX2 – Start battle with Bob the Goon
HEET-B2X2 – Start on Gotham City Streets level
HEET-B6X2 – Start battle with mimes
HEET-BAX2 – Start battle with Gotham City Streets boss
AJET-AA6A – Start on Sky over Gotham level
AJET-AA6A – Start on Gotham Cathedral level
AJET-AA6A – Meet the Joker

Battle Squadron

R1JT-R60T – Master code, must be entered
AD1T-AAE0 – Infinite lives
AA5A-AAC8 – Infinite nova smart bombs
BDLA-AA9Y – Don’t downgrade weapons when killed
AA6T-RAF2 – Limit enemy bullets on screen to 1

Castle of Illusion Starring Mickey Mouse

EABT-AA3E – Master code, must be entered
SC6A-AY0L – Infinite items
SCYT-RYVN – Keep items between levels
SC8T-AYXR – Infinite tries
SCKA-AY1Y – Invincibility
E5EA-AAGE – Jump higher

Comix Zone

AFDV-6AAW – Start on Episode 1, Section 2
AKDV-6AAW – Start on Episode 2, Section 1
APDV-6AAW – Start on Episode 2, Section 2
AVDV-6AAW – Start on Episode 3, Section 1
AZDV-6AAW – Start on Episode 3, Section 2
AJDV-4A4L – No damage from attacking solid objects
AJCV-4A56 – No damage from enemies, explosions, hazards, etc.
963B-4JAC – Medicine fully heals player

Decap Attack

AJBT-AA3G – Master code, must be entered
R17T-E60G – Almost invincible
AL2T-EA5W – Bridge segments don’t fall
CX8A-EA5N – Infinite items

Desert Strike: Return to the Gulf

RH9T-860E – Master code, must be entered
D3ZA-AA7E – Infinite lives
BVST-WAER – Chain gun inflicts 12 points of damage
NVST-WAFN – Hydra rocket inflicts 100 points of damage
WBST-WCGL – Hellfire missile inflicts 400 points of damage
AMLT-AA44 – Infinite capacity for all weapons
ABET-AAF8 – Helicopter consumes no fuel
2VET-AWGT – Maximum armor protection is 2,500
BMSA-AAFR – Helicopter carries 10 passengers
SHRA-BTYR – Red cross box worth 4 extra lives

Dragon’s Fury

RE0A-A6WR – Infinite balls
BECT-AAE0 – Start with bonus multiplier at 9
AVPA-AA8L – Bonus points never reset when bonus is collected
AVPA-AA8Y – Bonus multiplier never resets when bonus is collected

Earthworm Jim

GC3C-JA4C – Infinite ammo
AW6C-JA2T – Infinite continues
CT3W-LA9T – No air loss in Sea Pod
J4BW-LA4Y – No damage to Sea Pod from running into walls
7A1W-LGC8 – Plasma gun power-ups worth 1000
AF5C-JADY – Start on What the Heck
AK5C-JADY – Start on Snowman Boss
AP5C-JADY – Start on Evil Boss
B35C-JADY – Start on Sea Tunnels
B75C-JADY – Start on Pod Races
AV5C-JADY – Start on Snot a Problem 1
AZ5C-JADY – Start on Snot a Problem 2
A35C-JADY – Start on Snot a Problem 3
A75C-JADY – Start on Peter Puppy
BB5C-JADY – Start on Slug For Butt
BF5C-JADY – Start on Helicopter
BK5C-JADY – Start on Professor’s Lab
BP5C-JADY – Start on Chicken Fly
BV5C-JADY – Start on Naked Worm
BZ5C-JADY – Start on Intestines
C75C-JADY – Start on Darkness 1
DB5C-JADY – Start on Darkness 2
DF5C-JADY – Start on Darkness 3
DK5C-JADY – Start on Darkness 4
DP5C-JADY – Start on Darkness 5
DV5C-JADY – Start on Psy-crow level(between levels 1 and 2)

Earthworm Jim 2

HFZW-LAFN – Start with 9000 bullets
RH2W-J6T8 – Infinite lives
HF1C-LAH6 – Start with 900% health

Ecco the Dolphin

AKRT-JA64 – Almost infinite breath, switch off to die if you get stuck
AL2A-JA7L – Protection from most jellyfish and many other enemies
ALZA-JA5Y – Protection from spiked shells and some other enemies
AAVT-NAFC – Protection from octopus
HCBT-LAEW – Charging a school of fish restores health completely instead of partially

Gaiares

AJEA-AA20 – Infinite ships
A2ET-AA98 – Infinite credits
DAEA-AA58 – Don’t lose weapon type or power level when you lose a ship
AK4A-AA6N – Break defender lasts forever

Golden Axe

BB1A-AA78 Infinite hit points
RF8A-A6W6 Infinite magic
KB8T-AA46 Infinite lives
AJVT-AA2T Infinite credits
SA8A-BET2 Start on stage 2
SA8A-BJT2 Start on stage 3
SA8A-BNT2 Start on stage 4
SA8A-BTT2 Start on stage 5
SA8A-BYT2 Start on stage 6
SA8A-B2T2 Start on stage 7
SA8A-B6T2 Start on stage 8

Gunstar Heroes

AJBT-AA5R – Master code, must be entered
AL4T-AA3A – Protection against most hits
AAJT-CAFA – Protection from falling off screen
AM2T-AA4N – Always have 999 vitality (infinite vitality)

Hellfire

ATZA-AA9R – Infinite Hellfire missiles
ATYA-AA4J – Infinite lives
SEXA-BNTW – First power-up item worth more

James Pond II: Codename Robocod

R1RT-R6X0 – Master code, must be entered
AJ8T-AA9G – Infinite lives
968T-B93C – Invincibility, bad guys explode when you touch them!
ALZA-AA5A – Infinite continues
AJYT-AA20 – Keep wings from round to round

Jungle Strike

R13B-861A – Master code, must be entered
AGGA-GAEY – Start on Campaign 2: Sub Hunt
ALGA-GAEY – Start on Campaign 3: Training Ground
ARGA-GAEY – Start on Campaign 4: Night Strike
AWGA-GAEY – Start on Campaign 5: Puloso City
A0GA-GAEY – Start on Campaign 6: Snow Fortress
A4GA-GAEY – Start on Campaign 7: River Raid
A8GA-GAEY – Start on Campaign 8: Mountains
BCGA-GAEY – Start on Campaign 9: Return Home
BGGA-GAEY – Start on Campaign 10: Win Screen
D5DT-GA7A – Infinite lives
AXDA-GA3N – Infinite fuel
AKFT-JA9C – Infinite ammo

Knuckles in Sonic 2

AX6D-AA3W – Knuckles doesn’t lose rings when hit
HWLX-GA2Y – Infinite time
JV1D-CA6W – Infinite lives

Lion King, The

ABZB-WAG6 – Almost invincible
AV6B-4A5G – Infinite lives
PVYV-4A4G – Infinite continues
A3XV-WA7J – Roaring does not reduce roar meter
A3ZB-WA3E – Getting hit does not reduce roar meter
AK4V-5A8W – Start on Level 2 – Can’t Wait To Be King
AP4V-5A8W – Start on Level 3 – The Elephant Graveyard
AV4V-5A8W – Start on Level 4 – The Stampede
AZ4V-5A8W – Start on Level 5 – Simba’s Exile
A34V-5A8W – Start on Level 6 – Hakuna Matata
A74V-5A8W – Start on Level 7 – Simba’s Destiny
BB4V-5A8W – Start on Level 8 – Be Prepared
BF4V-5A8W – Start on Level 9 – Simba’s Return
BK4V-5A8W – Start on Level 10 – Pride Rock
BP4V-5A8W – Start on Bonus Level – Bug Toss
BV4V-5A8W – Start on Bonus Level – Bug Hunt 1
BZ4V-5A8W – Start on Bonus Level – Bug Hunt 2
B34V-5A8W – Start on Bonus Level – Bug Hunt 3

Mega Turrican

1VWT-BCBE – Weapon power-ups always max out weapon level
BAMT-AA60 – Weapon levels don’t decrease after dying
AJMT-AA7W – Homing missile isn’t lost after dying
AAST-BJ2J – Infinite time
AAMT-BA44 – Infinite lives
AANT-BE3N – Infinite continues
AJST-AA6A – Infinite wheel time
AKET-AA7J – Infinite smart bombs
AJTA-AA94 – No energy loss (invulnerability)
9TLT-BCNG – Start on level 2
9TLT-BCNG – Start on level 3
9TLT-BCNG – Start on level 4
9TLT-BCNG – Start on level 5
9TLT-BCNG – Start on level 6
9TLT-BCNG – Start on level 7

Outrun

RYBT-A6ZJ – Master code, must be entered
RY4T-A6ZJ – Infinite time to complete race

Phantasy Star II

Note: Saves are not enabled with the Game Genie connected

ATBA-AA4R – Master code, only necessary if you have a newer model Genesis
BXJA-AA26 – Everything is free
RG8A-A60R – Everything at armor store is free
RG9T-A60J – Everything at tool shop is free
RG7T-A6V2 – Everything at armorer’s store is free
AL6T-AA50 – All medical care is free
AL5T-AA76 – All clones are free
AMFT-AA4G – All teleporting is free
CJZT-AA2N – No hp taken off from physical strikes
CJ0A-AA2Y – No hp taken from venom strikes
CV2T-AA5R – No hp lost in damage zones
RGZA-A6XL – Do all peaceful magic if you have enough tp, tp is not deducted
CTWT-AA3L – Battle magic does not use up your tp
AJOT-AA4W – Players never get paralyzed
REYA-A6TY – All enemies die in one strike

Phantasy Star III: Generations of Doom

ETBA-AA88 – Master code, must be entered
A4ZT-AA22 – Buy anything at armor, weapon, and equipment shops no matter how much meseta you have
BXDA-AA5L – Fortune telling is free
BXAT-AA64 – Poison recovery at healer’s is free
BW9T-AA5E – Resurrection at the healer’s is free
A49A-AA28 – Technique distribution is free
REHT-C6VL – Using monomate, dimate, or trimate restores all lost HP
BTHA-CA9J – No TP lost for using Res technique
BTHA-CA38 – No TP lost for using Rever tech.
BTHA-CA6W – No TP lost for using Gires tech.
GCJT-B62W – No TP lost for using Anti tech.
CKBA-AA3G – One strike kills small front row enemies
B3FA-AA80 – One strike kills all large back row enemies
GTBT-CA3T – No HP lost in battle from enemy strikes
GTCT-CA5C – No HP lost in battle from enemy techniques
ATJT-CA50 – Characters cannot be poisoned
A2NT-AA8R – No enemies ever attack (code must be turned off to complete game)

Phelios

AT5A-AA3E – Infinite lives
BTCT-AA5G – Almost infinite energy
ATHT-AA8R – Infinite credits
AT3T-AA5C + AT3T-AA3C – Once the sword is fully heated up, it stays at full energy almost forever
SG9A-BT1G – Each speed-up item worth 2
AEPA-BA42 – Start at chapter 2
AJPA-BA42 – Start at chapter 3
ANPA-BA42 – Start at chapter 4
ATPA-BA42 – Start at chapter 5
AYPA-BA42 – Start at chapter 6
A2PA-BA42 – Start at chapter 7

Pulseman (JAP-NTSC)

LAXT-AA5L – Region Bypass

Ranger-X

AW2A-AA96 – Infinite continues
AWWA-AA40 – Invincible in Ex-Up cycle
GLWA-AA80 – Invincible out of Ex-Up cycle
CBHT-AA92 – Thruster packs never heat up
ALTT-AA6C – Infinite weapon power
ABPT-CADT – Weapon power not reduced when shields are recharged
AKYA-AA6C – Start with all weapons available

Revenge of Shinobi, The

BMVT-GA6L – Infinite shurikins
BXVA-GA9E – Infinite life bar
RFCA-A616 – Some bombs, enemy shurikins and swords don’t hurt
AC5A-BA46 – No life lost when using Jitsu of Mijin
AGKT-AAAA – Start in District 1, level 2
ALKT-AAAA – Start in District 1, level 3
ARKT-AAAA – Start in District 2, level 1
AWKT-AAAA – Start in District 2, level 2
A0KT-AAAA – Start in District 2, level 3
A4KT-AAAA – Start in District 3, level 1
A8KT-AAAA – Start in District 3, level 2
BCKT-AAAA – Start in District 3, level 3
BGKT-AAAA – Start in District 4, level 1
BLKT-AAAA – Start in District 4, level 2
BRKT-AAAA – Start in District 4, level 3
BWKT-AAAA – Start in District 5, level 1
B0KT-AAAA – Start in District 5, level 2
B4KT-AAAA – Start in District 5, level 3
B8KT-AAAA – Start in District 6, level 1
CCKT-AAAA – Start in District 6, level 2
CGKT-AAAA – Start in District 6, level 3
CLKT-AAAA – Start in District 7, level 1
CRKT-AAAA – Start in District 7, level 2
CWKT-AAAA – Start in District 7, level 3
C0KT-AAAA – Start in District 8, level 1
C4KT-AAAA – Start in District 8, level 2
C8KT-AAAA – Start in District 8, level 3

Road Rash

RH9T-R60T – Master Code – Must be entered
AJPA-AAFG – Player A starts at level 2
ANPA-AAFG – Player A starts at level 3
ATPA-AAFG – Player A starts at level 4
AYPA-AAFG – Player A starts at level 5
A6PA-AAGW – Player A starts with Diablo 1000 bike

Road Rash 2

RH6A-86YJ – Master code, must be entered
ZAST-AC58 – Player A starts game with $250,000
B2ST-AAEG – Player A starts game with Diablo 1000 bike

Shinobi III: Return of the Ninja Master

CJSA-EA7G Infinite energy (only works on default difficulty setting)
CBTT-AG48 Start with 99 lives (game can only display 9 lives)
AT3A-EA72 Infinite Shurikins, 7 for Shurikins Burst
AT1T-EA4E Infinite ninjitsu items
AX6T-AA2E Infinite credits

Sonic 3

AWHA-CA92 – Don’t lose rings
SCGT-DAYL – Rings worth 8
BLGT-CAE0 – 10 Rings needed for an extra life
AJZA-CA8N – Super Sonic doesn’t lose rings
AJ3A-CA7A – Infinite lives
AJRT-CA8R – Invincibility power-ups last forever
ACGA-AA8T – 1 Blue sphere needed for chaos emerald

Sonic 3 & Knuckles

AWXT-CA4C – Don’t lose rings when hit
HXRT-AA6A – Infinite time
98MA-CAF0 – Keep shields (fire, bubble, lightning) when hit
AMNA-EA24 – Keep rings between levels
ATGT-CA3Y – Super shoes don’t run out with time
RGSA-A6YY – Only 1 blue sphere needed to get a chaos emerald
AANT-CAG6 – Become Super Sonic without any chaos emeralds
ACCT-CA2R – Can’t drown

Sonic & Knuckles

K2WA-CA4J – Infinite lives

Sonic the Hedgehog

ATBT-AA32 – Master code, must be entered
AE0T-CABE – Once invincible, stay invincible for the rest of stage or until you die
SCRA-BAX0 – Each ring counts as 8
GJ6A-CA7A – Infinite lives
AY3T-BA4R – Start with 5 chaos emeralds
AEOT-CABY – Once you have speed shoes, keep shoes for the rest of stage or until you die

Sonic the Hedgehog 2

SATA-DATJ – Rings worth 8, player 1
JW3A-CA4Y – Infinite lives, player 1
ALTA-CA9Y – Once invincible, Sonic stays invincible for the rest of the level
ATTT-CA58 – Sonic doesn’t lose rings when hit
K4ZT-CA9N – Super Sonic doesn’t lose rings with time
AH2T-CAH6 – Sonic needs only 1 ring instead of 50 to enter special stage

Sonic the Hedgehog Spinball

AXBA-4A4T – Infinite lives
AFBT-5N7G – Start on Level 2: Lava Powerhouse
AKBT-5N7G – Start on Level 3: The Machine
APBT-5N7G – Start on Level 4: Showdown
AXST-8A5L – Infinite balls in all bonus rounds

Splatterhouse 2

AX3A-AA2N – Infinite lives
9JBT-AAB6 – Start with 250 hit points

Splatterhouse 3 (US-NTSC)

DDBA-AA6A – Infinite lives
ADCA-ACG8 – Beating heart is full health
HHCA-BTVR – Orbs worth 4x as normal
AW5T-AA5G – Power does not decrease when you are mutated
C4XT-EA7W – Clock does not run