How many movies have Akira Matsuki and Kazuo Tsuburaya collaborated on?

They have worked on 6 movies together! Their first movie together was Ultraman Zearth 2: Superhuman Big Battle - Light and Shadow (1997) while their highest rated movie together was Superior Ultra 8 Brothers (2008). They have not worked together since Superior Ultra 8 Brothers (2008). They are most known for their science fiction films together.