This playthrough showcases e-Reader capabilities with special cards that add things to the game, and items only available through e-Reader, such as the Cape Feather and Boomerang, as well as Level Cards, eventually. In addition, some Power-Up Cards can enhance the game by adding things like vegetables from SMB2 and Luigi's Flutter Jump from SMB2 and SMA2: SMW. We're in World 6, the Icy world.