Cape Feather

A Cape Feather is an item from the Mushroom Kingdom that grants the user a golden cape, which can be used for flying, smashing into the ground, and whacking enemies away with a single spin. In the "Dimension" saga, Mario and Luigi utilize these capes to enhance their performance in battle. However, an abnormal side-effect occurs when a specific cape feather is previously altered by Eggman Nega and found by Wario and Waluigi, who attempt to use it on Mario; he, Luigi, and Yoshi are later inadvertently sent to a different dimension, which is precisely what Nega had intended.