From StrategyWiki, the free strategy guide and walkthrough wiki

Super Mario Bros. Deluxe includes two full games, each with a separate set of worlds:

• Super Mario Bros. walkthrough
• Super Mario Bros. 2: For Super Players walkthrough

There are also three gameplay modes that can be unlocked by playing the above titles:

• Challenge Mode walkthrough
• You Vs Boo walkthrough
• Vs Game information