Nintendo DS: Cheats and Tips
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All Games

Play as Luigi in Single-Player
Hold L + R and press A to select a saved game file to play as Luigi in single player mode.

Unlock World 4
Defeat the Boss in the last castle of World 2 as Mini Mario.

Secret Challenge Mode
Complete the game and start the cleared game file. Press Start to pause the game at the world map. Press L, R, L, R, X, X, Y, Y. The message Welcome to the Secret Challenge mode will appear to confirm the cheat has been activated. To indicate whether a level has a Secret Challenge version, the new right arrow icon will be lit in the top right corner of the map screen.

Unlock World 7
Defeat the Boss in the last castle of World 5 as Mini Mario.

Above are all the New Super Mario Bros. cheats, codes, tips, hints, secrets and walkthoughs that are currently in the Cheat Chest database. Because we do not have every game for Nintendo DS, Cheat Chest unfortunately can not guarantee that each New Super Mario Bros. cheat we have works. If any of the cheat codes above is incorrect, please rate the New Super Mario Bros. cheats at our partner site Neon Gaming, as enough bad ratings will automatically remove the cheat from our database.