Hienzan

Hienzan (Flying Swallow Slash) is one of Kim Kaphwan's signature Special Moves throughout both the Fatal Fury & The King of Fighters series, first appearing in Fatal Fury 2.

Description
The user does a backflip kick with their rear leg.

In the case of Kim Kaphwan, he can follow up with Tenshouzan, where he kicks his opponent back down.

With his son, Jae Hoon, his kick is powered up with flames.

With Chang, possibly due to his weight, he fumbles the kick and lands on his back before making a full rotation.

Strategy
To be added soon...