Sega Master System · cheat codes

Sonic the Hedgehog cheats & codes

42 codes for Sonic the Hedgehog on the Sega Master System, including Action Replay codes.

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.

Effect	Code
Infinite Rings	`00D2-AA98`
Infinite Lives	`00D2-4609`
Be Turbo Sonic	`00D4-1105`
Level Modifier	`00D2-3EXX`
Infinite Time	`00D2-CF00`

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.

Effect	Code
Be Turbo Sonic	`00D4-1105`
Level Select	`00D2-3E00`
Infinite Time	`00D2-CF00`
Invincibility	`00D2-0901`
Have All Chaos Emeralds	`00D2-7F06`
Invulnerability	`C9B-9D8-082`
Moon Jump	`18B-65B-6EA`
Infinite Time Underwater	`000-18A-6E6`
Infninite Time	`001-B7D-5DD 7EA-24C-3B7`
Infinite Lives	`004-64A-3BE`
Don't Lose Rings When Hit	`3A6-45C-2A2`
Infinite Rings	`00D2-AA98`
Infinite Lives	`00D2-4609`
Level Modifier	`00D2-3E00`
Rings Worth ??	`02E-43B-E6E`
Infinite Continues	`00D2-8409`
Infinite Time Underwater	`00D2-9C00`
Don't Die When Hit With No Rings	`186-16C-6EA`
Infinite Time	`7EA-18C-3B7`
Start with ?? Lives, instead of 3	`05C-4FE-E66`
Start on Green Hill Zone, Act 2	`00C-5DE-5D4 01C-59E-91A`
Start on Green Hill Zone, Act 3	`00C-5DE-5D4 02C-59E-91A`
Start on Bridge Zone, Act 1	`00C-5DE-5D4 03C-59E-91A`
Start on Bridge Zone, Act 2	`00C-5DE-5D4 04C-59E-91A`
Start on Bridge Zone, Act 3	`00C-5DE-5D4 05C-59E-91A`
Start on Jungle Zone, Act 1	`00C-5DE-5D4 06C-59E-91A`
Start on Jungle Zone, Act 2	`00C-5DE-5D4 07C-59E-91A`
Start on Jungle Zone, Act 3	`00C-5DE-5D4 08C-59E-91A`
Start on Labyrinth Zone Act 1	`00C-5DE-5D4 09C-59E-91A`
Start on Labyrinth Zone Act 2	`00C-5DE-5D4 0AC-59E-91A`
Start on Labyrinth Zone Act 3	`00C-5DE-5D4 0BC-59E-91A`
Start on Scrap Brain Zone, Act 1	`00C-5DE-5D4 0CC-59E-91A`
Start on Scrap Brain Zone, Act 2	`00C-5DE-5D4 0DC-59E-91A`
Start on Scrap Brain Zone, Act 3	`00C-5DE-5D4 0EC-59E-91A`
Start on Sky Base Zone, Act 1	`00C-5DE-5D4 0FC-59E-91A`
Infinite Time - Bonus Stage	`7EA-3EC-3B7`
Only need to finish level with ?? rings to get Bonus Stage, instead of 50	`010-639-A2B`

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

GameFAQs Walkthroughs, FAQs & message boards MobyGames Credits, releases & screenshots

More Master System games with cheats

Sonic the Hedgehog 2 Master System · 1992 · Platformer Classic

Sonic Blast Master System · 1997 · Platformer Classic

Sonic the Hedgehog 3 Genesis · 1994 · Platformer Classic

Sonic Chaos Master System · 1993 · Platformer Classic

Alex Kidd in Miracle World Master System · 1986 · Platformer Classic

Sonic Labyrinth Game Gear · 1995 · Platformer Classic

Back to Sonic the Hedgehog: is it worth playing?

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.