The Glow Block is an item in New Super Mario Bros. Wii. It appears in dark levels such as Ghost Houses. They are white blocks with eyes, that glow, enabling Mario to see. Mario must pick this up and carry it around (press 1 and shake the remote, Hold 1 to carry it). The Glow Block is one of the last items to appear in the game. The first Glow Block appears in a Ghost House in World 5 (NSMB Wii).