NES Game Genie Codes

NOTE: A fair amount of these have been tested on a real Game Genie and on a RetroDuo v3.0 NES/SNES clone. Most of the games listed here are on some multicarts I own unless otherwise specified. Numerous others were only tested on emulators, but results remain unknown if they’re played on an actual console with a Game Genie.
Also, this is a work in progress.

If there’s anything Game Genie codes shown here that’s on other websites, let me know by tweeting me on Twitter at @DPadDoc.

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A

Adventures of Lolo (NES)

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B

Bomberman (NES)
Bubble Bobble Part 2 (NES)

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C

Clu Clu Land (FC/NES)

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D

Devil World (FC)

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E

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F

Fruit Pig (FC)

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G

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H

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I

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J

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K

Kira Kira Star Night DX (FC)

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L

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M

Mendel Palace (NES)

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N

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O

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P

Porun-chan no Onigiri Daisuki (Trial Version 2.0) (FC)

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Q

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R

Rockman (FC)/Mega Man (NES)

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S

Super Mario Bros (FC/NES)
Super Mario Bros. 3 (NES)

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T

Tiny Toon Adventures (NES)
Tiny Toon Adventures 6 (FC)

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U

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V

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W

Wizards & Warriors (NES)

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X

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Y

Yoshi (NES)

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Z

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