The move is derived from the tie shan kao (贴山靠), a technique used in Hakkyokuken/Bajiquan (八極拳, lit. Eight Extremes Fist).
Executed by performing a Shoryuken motion? and pressing punch, Yun perform a crouching turn-step forward and charge-leans the opponent with back of his shoulder.How far the turn-step travels, how much damage the attack does, and how much startup and recovery time the attack requires all depend on the strength of the punch button pressed: light punch turns on the spot and does the least damage, but executes and recovers almost instantaneously; heavy punch travels about two-thirds of the screen and does the most damage, but takes the longest to begin and recover; and medium punch is a balance between the two.
The EX Special version turns faster than light punch, travels the length of the screen, and hits twice for as much damage as the heavy punch version.
Each version of the attack can allow a projectile to pass safely overhead if timed correctly. The non-launching versions can be used as a pressuring frame trap or as a method of offensive reset, from which a player can either continue the attack (often via an on-hit cancel) or bait further reactions from the opponent. Likewise, the launching versions can also work for juggles.
- Several characters, including Miyako Arima (Melty Blood), Kirei Kotomine (Fate/Unlimited Codes), Akira Yuki (Virtua Fighter), and Bayonetta all have their own versions of this technique in their respective games.
- Miyako's version is a command normal that can be followed with an upward punch similar to the end of Yun's You Hou attack. Akira's variant is a special attack that works similarly.
- Marvel Comics' Iron Fist (in Ultimate Marvel vs. Capcom 3) has the same special move, dubbed as Wall of K'un-Lun.
- In the anime Blood Lad, Staz does his version of this move.