This page describes Hwang
's Battle Style in each of the games in which he appeared.
In Soul Blade, Hwang's fighting style is a lot like Mitsurugi. The exceptions are his throws and kicks.
In Soulcalibur, Hwang's style is a lot like Xianghua. Again the exceptions are the kicks and throws, along with some sword moves, his stance, & he wields Blue Thunder instead of Krita-Yuga.
Hwang is not present in Soulcalibur II, but a style similar to his is used by Assassin.
In Soulcalibur III, Hwang finally has his own moveset, but he shares it with custom characters. It is somewhat stronger and more useful than Yun-seong's style.
He appears as an NPC in the Quick Match Mode using Yun-seong's style.
He appears as an NPC in the Quick Battle Mode using Devil Jin's style.