How many movies have Heikki Arala and Matti Ruohola collaborated on?

They have worked on 3 movies together! Their first movie together was Pi pi pil… pilleri (1982) while their highest rated movie together was Agentti 000 ja kuoleman kurvit (1983). They have not worked together since Yön saalistajat (1984). They are most known for their comedy films together.