How many movies have Ko Chun-Hsiung and Ting Shan-Hsi collaborated on?

They have worked on 8 movies together! Their first movie together was Eight Hundred Heroes (1975) while their highest rated movie together was My Wacky, Wacky World (1975). They have not worked together since The Beheaded 1000 (1993). They are most known for their drama films together.