Super Mario Bros. 3 Classic
Nintendo Entertainment System · cheat codes
Mystery Quest cheats & codes
24 codes for Mystery Quest on the Nintendo Entertainment System, including Game Genie codes.
Mystery Quest Game Genie codes
How to use: Galoob's Game Genie plugged in between the console and the cartridge. Type the codes in on its start-up screen, then press Start. In emulators, add them through the cheat menu and choose the Game Genie format if asked.
| Effect | Code |
|---|---|
| Invincibility | GXNPYAVG |
| Immune To Monster Attacks | AEXOGEEY |
| Immune To Shallow Water | AEUOAENY |
| Start With More Energy | ATSEUYAG |
| Start With Less Energy | AZSEUYAG |
| Start With Raft And Key | PEUOKPAA |
| Never Lose Key | GXVOOYSA |
| Never Lose Raft | PENOPTAA |
Mystery Quest 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 |
|---|---|
| Invincibility | GXNPYAVG |
| Immune to monster attacks | AEXOGEEY |
| Immune to shallow water | AEUOAENY |
| Start with more energy | ATSEUYAG |
| Start with less energy | AZSEUYAG |
| Start with raft and key | PEUOKPAA |
| Never lose key | GXVOOYSA |
| Never lose raft | PENOPTAA |
| Infinite Energy | 00BC:40 |
| Infinite Energy | SXNPYAVG |
| Infinite Vitality (Health) | 00BC:41 |
| Max Score P1 | 011D:09
011C:09
011B:09
011A:09
0119:09
0118:09 |
| Super Jump | 0046:F0 |
| Walk Through Enemies | 009B:10 |
| Always Have Key | 00CC:01 |
| Always Have SOS | 00CD:01 |
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.
Mystery Quest walkthroughs & guides
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Ice Climber Classic Co-op
Castlevania III: Dracula's Curse Classic
Back to Mystery Quest: 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.