Cape is Mario's Side Special Move, introduced in Super Smash Bros Melee. Mario's Cape can be used to reflect projectiles and some enemy moves.
Cape also turns enemies around regardless if they are shielding or not. Cape also can deal up to 10% damage on enemies.
If Cape is used whilst midair Mario gains a small of amount of air and his descent is slowed. This can help Mario get back on the stage or dodge attacks, as well as turn around an enemy trying to strike Mario with a Meteor Smash.
Related ThreadsFire Cape suit - last post by @ Aug 2, 2013
I can't get Koopa Cape music out of my head! - last post by @ Jan 31, 2009
Cape feathers - last post by @ Mar 23, 2003