How many movies have Kwok-Lap Lee and Yau Ning Wong collaborated on?

They have worked on 3 movies together! Their first movie together was Sting of the Scorpion (1992) 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 crime films together.