While there are only three different combat styles to choose from when you create your character, a fourth one is available for you to unlock once in the game. The Stagger style, the drunken fist. Unlocking it is not easy, though, as you need to hunt down and defeat the one named Jinn Mesca, Prime Disciple of the Golden Bottle.
The special ability of this style is Stumble.
"The warriors who practice the Stagger Style may appear to be out of control, but the sways and stumbles can give way to devastating strikes in the blink of an eye.
Vitality and Strength are abandoned in favour of the other attributes."