Directional Blocks are an object in Super Mario 3D Land.
Description[]
A Directional Block is a purple block with a white arrow on each side. Mario or Luigi can hit a Directional Block from below to have it move a certain distance in the direction it is pointed, which usually allows Mario or Luigi to reach otherwise inaccessible blocks or collectibles, such as the first Star Medal of World 3-4. Each Directional Block's position in a level cannot be reset unless the level is re-entered.