Snake in the Monkey's Shadow (1979)

A snake style expert travels the lands, imposing his mastery on others, until he runs into a monkey expert living on the edge of a small town, who defeats him soundly. The snake expert leaves vowing vengeance. A young peasant boy who is bullied by local noblemen seeks to learn drunken boxing from the head of a local martial arts school. The boys learns and eventually meets and befriends the monkey style expert. When the boy beats up his previous tormentors, the nobles patriarch challenges the boys teacher, the drunken master, who defeats the lot of them. Embarrased, the nobles retain two hired snake style killers, one of whom is the expert that that was beaten by the monkey style. They kill everyone except the peasant boy, feeling he is to weak and unskilled to be worth their honour. The peasant combines drunken' boxing with monkey style in an attempt to put down the snake killers.