In real world martial arts, kicking is as much part of the technique as throwing punches. Although the characters in wuxia fiction definitely use their legs and feet in fights, we don't hear too much about foot-fighting systems that are actually identified with names (and we're not counting hing gung skills here). Everybody knows about Hong Lung 18 Palms, 1 Yeung Finger Technique, Sad Palms, Iron Palm, etc., which are all hand and arm-based martial arts. Are there any famous foot and leg-based martial arts in wuxia fiction, which feature mostly kicking attacks?