How Chuen Monkey Kung Fu, Monkey Art How Chuen way of the Sasquatch by Shifu Fred Decramer. Grandmaster Fred Decramer was also the teacher of well known master Shifu Douwe Geluk a master of the Chinese martial arts and the creator of How Chuen Kung Fu Online learning courses. This system goes back to the lineage of Su Kong Tai Djin who learned this art in the woods from the Sasquatch also known as Bigfoot or Yeti.