How many movies have Kara Wai Ying-Hung and Yip San acted in together?

They have worked on 5 movies together! Their first movie together was Raid on Royal Casino Marine (1990) while their highest rated movie together was On Parole 2: Do Unto the Other (1993). They have not worked together since On Parole 2: Do Unto the Other (1993). They are most known for their action films together.