Super Mario Bros. (NES) Cheats: None Official—Game Genie, ROM Hacks, Tools

Nintendo **never released official cheat codes** for Super Mario Bros. (NES). Options to modify the experience:

Historical Hardware

• Game Genie (Galaxy, 1990): Cartridge pass-through; codes like `SXIOPO` (infinite lives), `AAEPAA` (invincibility). Works on original hardware.
• Pro Action Replay / GameShark (later): Similar concept, more codes.

Modern Methods

• ROM Hacks: Patched `.nes` files—Super Mario Bros. Deluxe, Hard Mode, Luigi's Adventure. Play on emulator (Mesen, FCEUX) or flashcart (EverDrive N8).
• Lua Scripting (Mesen/FCEUX): Real-time memory edits (infinite jump, moon gravity) without permanent ROM change.
• NSO Rewind/Save States: Nintendo Switch Online NES app has rewind + save slots—effectively "cheat" tools.

Caution

Game Genie on real hardware can **corrupt save RAM** (though SMB has no battery save). ROM hacks on flashcarts are safe. Always backup original ROM.

Best experience? **Beat it legit**—the 32-level mastery is why it's a masterpiece.