Cape Feather

A yellow feather that transforms Mario and Luigi into Caped Mario and Caped Luigi in Super Mario World. As their caped selves, they can hover in the air and fly, similar to the Super Leaf's effect in Super Mario Bros. 3.

The Cape Feather was also used in Super Mario Kart for the SNES as an item you could collect from item boxes throughout the race courses. The Feather's effect was the ability to hop roughly double the height you are normally able to, as well as cause you to spin when you do jump. This would be useful for jumping over barriers, as a quick and easy shortcut, and as well as for jumping over enemy projectiles.