Ice Snake Blocks are Snake Blocks that appear in New Super Mario Bros. Wii. Ice Snake Blocks appear in World 3's Castle of World 3 (NSMB Wii). They get their name, because when Mario steps on them, a line of blocks start moving. They are blue in color with angry eyes.Ice Snake Blocks look like they are frozen. They are not directly slippery. Mario must try to navigate the Ice Snake Block to avoid falling, and to get to Lemmy's door. Ice Snake Blocks take good timing, or you can fall.