Sonic the Hedgehog Classic
Sega Genesis / Mega Drive · cheat codes
Mr. Nutz cheats & codes
20 codes for Mr. Nutz on the Sega Genesis / Mega Drive, including Action Replay codes.
Mr. Nutz 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 Lives | FFF545:B2 |
| Infinite Energy | FFE114:7F |
| Infinite Nuts | FFE6FF:09 |
Mr. Nutz 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 |
|---|---|
| Infinite Lives | HT6A-DAM6
BJ6A-CAD8 |
| Infinite Energy | RHPT-A6XY |
| Invincibility | HWAT-DAK6
ALAT-CAB8 |
| To get rid of the flicker with the above Invincibility cheat | A4AT-CA40 |
| Infinite Lives | BJ6A-CA6L |
| Infinite Energy | AXPT-AA52 |
| Invincibility | DWAT-CN4A |
| Infinite Lives | FFF544:00B2 |
| Infinite Energy | FFE114:007F |
| Infinite Nuts | FFE6FE:0009 |
| Re-Enable Password (AAAAAA) | NFJT-EC3N
NFJT-EC3R
NFJT-EC3T |
| Invincibility | FFE07C:0010 |
| Skip Levels In Game Hold A+B+C+Left+Down | AMFT-AA7E |
| Jump in mid air with a very slow descent | FFE05B:0000 |
| Controllable Jump | ADWT-BAFR |
| Freeze Time Continue | AT2T-EA5T |
| Freeze Time Continue | FFF673:000A |
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.
Mr. Nutz walkthroughs & guides
More Genesis games with cheats
Sonic the Hedgehog 2 Classic Co-op
Sonic the Hedgehog 3 Classic
The Lost Vikings Classic Co-op
Earthworm Jim Classic
Disney's Aladdin Classic
Back to Mr. Nutz: 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.