▲
2
▼
On the World Map pause screen after finishing the game, if you press L/R/L/R/X/X/Y/Y, a secret Challenge Mode will be enabled that disables scrolling backwards in levels, making the gameplay more similar to Super Mario Bros., Super Mario Bros.: The Lost Levels, and Super Mario Land. Inputting this code again on the World Map pause screen disables this mode.
▲
2
▼
Tapping letters as the credits roll will make unique sound effects play. These effects are heard throughout the game, and each letter has its own sound (except for letters D and E, which share the same sound). The letter Q is never seen during the credits and thus has no sound.
▲
2
▼

▲
2
▼
The name "/script/game.bmg/msg 7" has text that says "You can't save here. Do you want to quit?" which is only used during certain undetermined circumstances.
Related Games
BS Super Mario Collection
Captain Toad: Treasure Tracker
Super Mario Bros. Deluxe
Mario Superstar Baseball
Super Mario Land
New Super Luigi U
Mario Golf
Mario's Tennis
Dance Dance Revolution Mario Mix
Mario Sports Mix
Super Mario Kart
Mario Paint
Mario & Luigi: Superstar Saga
New Super Mario Bros. U
Super Mario Bros. 3
Super Mario World 2: Yoshi's Island
Luigi's Mansion
New Super Mario Bros. U Deluxe
Super Mario Bros.
Super Mario Galaxy 2
Super Mario World
Mario Party
Super Mario Odyssey
Super Mario 64 DS
Super Mario 64
Super Mario 3D Land
Super Mario 3D World
Super Mario Bros. 35
Super Mario Bros. 2
Super Mario Galaxy
Dr. Mario
New Super Mario Bros. Mii
All Night Nippon Super Mario Bros.
New Super Mario Bros. Wii
Mario no Photopi
Yoshi
Wario's Woods
Mario & Sonic at the Olympic Games
Super Mario Bros. Wonder
Super Mario Strikers
Mario's Early Years! Fun with Letters
New Super Mario Bros. 2
Mario Pinball Land
Super Mario Land 2: 6 Golden Coins
Super Mario Run
Mario Teaches Typing
Mario & Wario
Super Mario FX
Mario Is Missing!
Super Mario Spikers