Super Mario Bros. 3-e

Super Mario Bros. 3-e is a set of e-Reader cards made for use in Super Mario Advance 4: Super Mario Bros. 3. They allow players to get certain power-up items (some of which, such as the Cape Feather, are exclusive to Super Mario Bros. 3-e) at any time in Super Mario Advance 4. Some of the cards featured in Super Mario Bros. 3-e also contain levels to be uploaded to World-e and demonstrations on performing certain secrets. Not all of these cards were released in western regions.