Shadow Step (影足 Kage Ashi?, lit. "Shadow Feet") is an evasive move exclusive to Heihachi Mishima from the PlayStation version of the first Tekken game onwards. The move was not available in the original arcade version, and it was the only move in the game that allowed stepping to the side.
Description[]
Heihachi will dash back in a counterclockwise motion, which has the ability to sidestep most incoming moves and projectiles. Since Tekken Tag Tournament 2, Heihachi will automatically laugh when performing the attack.
Doctor Bosconovitch has a variant known as Shadow Run.