How many movies have Akira Kushida and Fumihiko Tachiki collaborated on?

They have worked on 5 movies together! Their first movie together was Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie Wars Core (2010) while their highest rated movie together was Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai (2014). They have not worked together since Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai (2014). They are most known for their science fiction films together.