Leg Attacks are boosted by Leg Attack stickers in Super Smash Bros. Brawl's The Subspace Emissary, the Strong Kick power in Super Smash Bros. for Nintendo 3DS's Smash Run, and the Spirit skill Foot Attack ↑ as well as certain Spirit Battle conditions in Super Smash Bros. Ultimate.
The Leg type is subdivided into two subtypes: Foot and Knee. In Super Smash Bros. Ultimate, the supertype physical (which is boosted by the Physical Attack ↑ Spirit skill) encompasses the types Arm, Leg, and Bite.
In Super Smash Bros. Brawl, Super Smash Bros. 4 and Super Smash Bros. Ultimate
Foot attacks by character
Knee attacks by character