From libretro-database, untested by us
Master System Emulator Cheat Codes
2,067 codes on 183 Master System games, including Action Replay codes.
2,067 emulator cheat codes for 183 Master System games, including Action Replay codes. Each set on a game page names the device it was written for and the regional version of the game it applies to, and links to the libretro-database file it came from. None of them has been tested by us.
Code formats on this system
RetroArch code 1.5K
Action Replay 531
Master System games with emulator codes
All systems
Bonanza Bros.
Kenseiden
Basketball Nightmare
Astérix and the Great Rescue
Fantasy Zone II
Aleste
Alex Kidd: The Lost Stars
Aztec Adventure
Pro Wrestling
Klax
Bank Panic
The Terminator
SpellCaster
Ace of Aces
Chuck Rock II: Son of Chuck
Zillion II: The Tri Formation
Rambo: First Blood Part II
James Bond 007: The Duel
Spider-Man: Return of the Sinister Six
Darius II
Legend of Illusion Starring Mickey Mouse
S.C.I.: Special Criminal Investigation
World Grand Prix
The Cyber Shinobi
Zillion
Bram Stoker's Dracula
Psycho Fox
Daffy Duck in Hollywood
Marksman Shooting/Trap Shooting/Safari Hunt
Ayrton Senna's Super Monaco GP II
Air Rescue
Sonic Blast
Dynamite Düx
Rambo III
Ghost House
The Ninja
Rescue Mission
Back to the Future Part II
Teddy Boy
Mônica no Castelo do Dragão
Vigilante
Captain Silver
Alex Kidd: High-Tech World
Wolfchild
Kung Fu Kid
Rocky
Predator 2
Tom and Jerry: The Movie
Open a game and scroll to Emulator cheat codes. Each set names its device, its regional version and the libretro file it came from.
Other systems
Quick answers
Frequently asked questions
How many Master System cheat codes are there here?
2,067 codes across 183 Master System games, in 2 code formats: RetroArch code (1,536) and Action Replay (531).
How do you use these Master System codes?
In RetroArch, open the Quick Menu while the game is running, go to Cheats, add the code, switch it on and choose Apply Changes. On original hardware you need the cheat device the code was written for. Either way, the code has to match the regional version named on the set.
Do these Master System codes work on any version of a game?
No. A memory code points at a location inside one particular build, so a code for the USA release will usually do nothing on the Japanese or European one. Every set names its version, and where we only have a set for one region, that is the only region it is listed under.
Are these tested?
No. These are third-party codes from libretro-database, shown with their source file so you can check them. They are kept separate from our own cheat codes, which carry a "Reported working" or a dated "Tested" label, and they never count towards a game's cheat total.