Useful Game Genie Codes for Super Mario Bros (NES) by TheVeryFirst
These are mostly for my own use, but they may be of use to others.
World Select Code (Press B on main menu to cycle)
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NNXAZZYE
AANAAXZG
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Swim instead of Jump
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PIGOAP
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January 21st, 2022 @ 8:16 PM (UTC) - Post ID 268