Crouching

Crouching is a ground-based position achieved by holding down on the control stick when standing. Crouching shortens the character's damageable collision bubble and can be used to crouch cancel enemy attacks. Crouch canceling has no effect in Super Smash Bros. Brawl).

SSBM's lowest crouching characters are Kirby, Jigglypuff, Pichu and Sheik.