Special 8

Special 8 is the sixteenth and final world that appears in the 3DS game, Super Mario 3D Land. It features seven levels and a Toad House. Except Special 8 Crown, all levels in Special 8 must be unlocked by collecting a certain amount of Star Medals, with the amount growing by 10 with each level. Unlike other Special Worlds which feature the backgrounds from their original respective worlds at night and new arrangements of the themes for each one, the background is based on the design of a typical Super Mario Bros. 3 level instead of a lava wasteland, and new music (based on the Mario Drawing Song in Flipnote Studio) is played on the map. When Special 8-Crown is unlocked, that music is remixed, featuring more bass. It takes place in a light-yellow plain with Blocks, Coins, and Warp Pipes in the background. What sets this apart from the other Special Worlds is that while the others have all the levels available to begin with, the player must clear each level to access the next one (not unlike the progression of the regular worlds).