Bā Jí Guán (八极拳)

Baji Quan(八極拳) literally "eight extremes fist", also known as the kaimen baji quan (open-door eight extremes boxing), is a very respected traditional Chinese martial arts, that features explosive, short range power and is famous for its elbow strikes.

If you read comic book, KENJI, a story of young man in search of his grandfather who teach him this kongfu(kungfu delapan mata angin). in the story a lot of master of this kongfu is introduced(yes almost of the character are real), like Liu Gekkyu (Liu Yun Qiao,1909 - 1992), Lie Syo Bun (Li Shuwen 1864-1934).

Tactics and Strategy:
Ba Ji fist is known to open the opponent's door/arms forcibly or Qiang Kai Men 强开门 and mount attacks at high, mid, and low levels of the body or San Pan Lian Ji 三盘连击. Thus the style is also called Kai Men Ba Ji Quan 开门八极拳.

Most Chinese Kung Fu styles have their own fighting forté. Bajiquan is generally used in close combat. With this concept, Bajiquan pays much attention to elbow, knee, shoulder and hip strikes. When blocking an attack or nearing an opponent, Bajiquan techniques emphasize striking major points of vulnerability, the thorax (trunk of the body) and roots (legs and neck).

Techniques
A. Six big ways of opening door or Liu Da Kai 六大开:

1. Ding 顶: using the fist, elbow, shoulder etc to push forward and upward.
2. Bao 抱: putting 2 arms together as if hugging someone. It is usually followed by Pi 劈.
3. Ti 提: elevating the knee to hit the thigh of the opponent, or elevating the foot to hit the shin of the opponent etc.
4. Dan 单: using a single move.
5. Kua 胯: using the hip.
6. Chan 缠: entanglement with rotation around the wrist, elbow and shoulder etc

B. Open Hand Forms and Weapons:
The forms of Baji are divided into Fist (non-weapon) and Weapon forms. There are 20 fist forms. Some of these include: 12 Baji Small Structure Fists, Baji Black Tiger Fist, Baji Dan Zhai, Baji Dan Da/Dui Da, Baji Luo Han Gong, and Baji Si Lang Kuan. In Weapon forms, there are eight different kinds of weapons, including the very famous Liu He Da Qiang (spear), Liu He Hua Qiang (spear), Chun Yang Jian(sword), San Yin Dao (sabre), Xing Zhe Bang (staff), Pudao, and Chun Qiu Da Dao(long two-handed heavy blade, used by Generals sitting on their horses).

C. Six Major Characteristic Powers:

1. Sinking (Xia Chen 下沉 or Chen Zhui 沉坠)
2. Thrusting (Chong 冲)
3. Extending (Cheng 撑)
4. Entangling (Chan 缠)
5. Cross (Shi Zi 十字)
6. Inch (Cun 寸)

Baji Guan was created by Wu Dang Monks, and separated into 2 major parts:
1. Mixed with other konfu e.g Bagua Zhang, Piqua Zhang, Shaolin dan Taichi.
2. Exclusively Spread in most of south china area
In china this kongfu is very popular for chinese moslem, also tought to the bodyguard of taiwan president.

source: wiki
useful links: here