Sonic the Hedgehog box art

Sega Genesis / Mega Drive · cheat codes

Sonic the Hedgehog cheats & codes

133 codes for Sonic the Hedgehog on the Sega Genesis / Mega Drive, including Action Replay codes. The most useful 129 are listed below.

Sonic the Hedgehog Action Replay codes

How to use: Datel's Action Replay sat between the console and the game. Enter codes on its menu before starting the game, or paste them into your emulator's cheat menu.

EffectCode
Enable Stage SelectFFFFD0:0100
Enable Debug ModeFFFFFA:0100
Infinite RingsFFFE20:00C8
Infinite LivesFFFE12:0009
Stage/Act ModifierFFFE10:xxyy
Makes Sonic Invulnerable To Enemies, Bullets, And Spikes Until He Picks Up Another Shield0039F0:11C1
Aerial View of A Level0039FC:31C1
Gives Sonic Turbo Shoes With Every TV He Breaks00A35E:6042
Begin With Several Hundred Rings On Each Level003242:6010
Begin The Game With 99 Lives00334A:0063
Infinite Lives0138A0:6032
Super Speed!FFF761:6411
Invincibility (Enemies Can't Touch You)FFD031:FF
Invincibility (Always Have Shield)FFFE2C:00
Invincibility (Starman Effect)FFFE2D:01
Set Total Time To 0:01FFFE24:00
Infinite Time Underwater For SonicFFFE15:FA
Defeat Stage 1 Robotnik Boss With 1 HitFFD921:01
Defeat Stage 2 Robotnik Boss With 1 HitFFD821:01
Defeat Stage 3 Robotnik Boss With 1 HitFFDA21:01
Defeat Stages 4 & 5 Robotnik Bosses With 1 HitFFD861:01
Defeat Final Stage Robotnik Boss With 1 HitFFFE5F:01
Set All Chaos EmeraldsFFFE57:06
Switch F/X On For Levitate JumpFFD012:FE
Faster MusicFFF001:00
Hyper Mode (Sonic)FFD01E:00
Sonic Color ModifierFFFB04:?? FFFB05:?? FFFB06:?? FFFB07:?? FFFB08:?? FFFB09:?? FFFB0A:?? FFFB0B:??
Sonic Sneaker Color Modifier (Base Color)FFFB19:?? FFFB1A:?? FFFB1B:??
Warp To End of StageFFD008:00

Sonic the Hedgehog Other codes

How to use: Additional codes collected by the community. Enter them through your emulator's cheat menu, choosing the format that matches your emulator.

EffectCode
MASTER CODE--MUST BE ENTEREDATBT-AA32
Start with 1 lifeAE3T-AACL
Start with 5 livesAY3T-AACL
Once invincible, stay invincible for the rest of stage or until you dieAE0T-CABE
Each ring counts as 2SCRA-BJX0
Each ring counts as 3SCRA-BNX0
Each ring counts as 4SCRA-BTX0
Each ring counts as 5SCRA-BYX0
Each ring counts as 6SCRA-B2X0
Each ring counts as 7SCRA-B6X0
Each ring counts as 8SCRA-BAX0
Infinite livesGJ6A-CA7A
Level select menuAJ3A-AA4G
Start with 5 chaos emeraldsAY3T-BA4R
Super jumpDDLT-AAGL
SkywalkingBDLT-AAGL
Low jumpKDLT-AAGL
Jump In MidairBT4A-CA66 AA4A-DZ7N RE4A-C6ZW AN4A-DP70 AT4A-CR76
Get Rings From AnywhereFGPT-BT0A
Sonic and other things are blackATTT-AAEE
Start With All Chaos EmeraldsA23T-BA4R
Never Lose RingsAWRT-AA5W
Start With 2 Continues663T-B64R
Kill The First Enemy And Get 9,999,999 Points!663T-BA4R
Get Rings From Computers OnlySCRA-BZX0
Enable Debugger!AE2T-AAAL
Start On Level 2 (Labyrinth Zone)AA2A-ACC8
Start On Level 2, Act 2 (Labyrinth Zone, Act 2)AE2A-ACC8
Start On Level 3 (Marble Zone)AA2A-AEC8
Start On Level 4 (Star Light Zone)AA2A-AGC8
Ring Count Goes To 50 After Getting HitGLRT-AADY
Ring Count Goes To 99 After Getting HitNRRT-AADY
Enable Stage SelectFFFFD0:0100
Infinite RingsFFFE20:00C8
Infinite LivesFFFE12:0009
Stage/Act ModifierFFFE10:0000
Makes Sonic Invulnerable To Enemies, Bullets, And Spikes Until He Picks Up Another Shield2E6T-BCHT
Aerial View of A Level2E6T-BCS6
Gives Sonic Turbo Shoes With Every TV He BreaksJLVT-AA48
Begin With Several Hundred Rings On Each LevelCA3A-AA4C
Begin The Game With 99 LivesNN3T-AACL
Super Speed!FFF761:6411
Invincibility (Enemies Can't Touch You)FFD030:00FF
Invincibility (Always Have Shield)FFFE2C:0000
Invincibility (Starman Effect)FFFE2C:0001
Set Total Time To 0:01FFFE24:0000
Infinite Time Underwater For SonicFFFE14:00FA
Defeat Stage 1 Robotnik Boss With 1 HitFFD920:0001
Defeat Stage 2 Robotnik Boss With 1 HitFFD820:0001
Defeat Stage 3 Robotnik Boss With 1 HitFFDA20:0001
Defeat Stages 4 & 5 Robotnik Bosses With 1 HitFFD860:0001
Defeat Final Stage Robotnik Boss With 1 HitFFFE5E:0001
Set All Chaos EmeraldsFFFE56:0006
Switch F/X On For Levitate JumpFFD012:00FE
Faster MusicFFF000:0000
Hyper Mode (Sonic)FFD01E:0000
Warp To End of StageFFD008:0000
Alot of animals come out of enemies when you destroy themAGJA-AAX2
InvincibilityR01T-C614 R02A-C6Y6
Skip Intro ScreensATBT-AAEE
Sonic Is Always In Debug Object Placement ModeNAZT-CA9L
When Sonic Dies He Falls Straight Through The Ground With No Expression On His FaceHW2A-CA7L
God ModeFFD024:0002
Invincibility - Sonic the Hedgehog (Japan, Korea)R05T-C6ZR R06A-C6WW
Walk On AirBVDA-CA7T
Infinite Time UnderwaterAJ9T-CA3A
Control Mode, in Pause press A reboot game, Press B play in slow motion, Press C move frame by frameREKT-A602
Don't Lose Rings When Hit, No Ring Scatter EitherR0RT-A6TE
Disable RingsR0PT-A6VN
Invincibility Lasts Until The End Of The LevelRY0A-C61R
Ring Monitors Gives You Speed Shoes Instead of 10 RingsFCVT-AA52
Ring Monitors Give You An Extra Life Instead of 10 RingsFCVT-BAX2
Walk Through Solid Objects (Except Ring Monitors)R17T-A6VN
InvincibleR01T-C612
All Monitors Give You Speed Shoes Instead of 10 Rings (REV01)FCYT-AA94
All Monitors Give You An Extra Life Instead of 10 Rings (REV01)FCYT-BA14
Music Continue (No SFX)RYST-R6WN
No MusicRYTA-R6W4
Music Sounds DifferentRY0A-R6V0
Walk Through Ring MonitorsALWA-AA8A
Disable HUDR1CT-C6WW
Disable Moveable ObjectsR1KT-A6W6
Pause the game to enable debugger. See notes.9JKT-B98J
Pause The Game To Enable Debugger (alternate version). See notes.BEKT-B78J
Pause The Game To Become Invincible. See notes.HASA-SEXE FYSA-S75G
Pause The Game And Press A To Play Special Stages. See notes.ATKT-AA8Y CAKT-AAHE
Pause the game and press A to see ending sequence and credits. See notes.ATKT-AA8Y DAKT-AAHE
Pause The Game And Press A For Invincibility, or Press B Or C To Add 10 Rings To Your Total. See notes.ATKT-AA8Y FYKT-B79G DJKT-AA9J SALA-ANAW BJLA-AAAY EALA-B720 DYLA-B726 6TLA-AA28
Invincibility (walk thru enemies and enemy fire). See notes.RG1T-C61E
Invincibility (partial). See notes.BL1T-CA3Y
Protection From SpikesFMHA-AA90
Don't Fall When You Walk Off Ledges (Walk on air). See notesRZDA-C6ZT
Walk thru rocks, spikes, walls (some), springs, etc. See notes.AD7A-AA88
Touching The Red Goal Markers In The Special Stages Won't Make You ExitAL9T-CA3N
Special/Bonus Stages Rotate Slower. See notes.CBDA-AAGG
Special/bonus stages don't rotate at all. See notes.ABDA-AAGG
Special/Bonus Stages Don't Rotate At All, And You'll Have High Moon Jump With Super Slow Moon Descent. See notes.AG8A-CAEE ABDA-AAGG
Don't Die When Timer Reaches 10 MinutesRHDT-C6TR
Always get 5000, 10000, or 50000 Time Bonus points at the end of levelsRHDT-C6VJ
Timer runs at half speed (2x slower than normal)SDDT-CAAY

Showing 100 of 104 codes.

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.

Sonic the Hedgehog 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.