How many movies have Kazumasa Otani and Koichi Yada collaborated on?

They have worked on 6 movies together! Their first movie together was Tensou Sentai Goseiger vs Shinkenger: Epic on the Silver Screen (2011) while their highest rated movie together was Tokusou Sentai Dekaranger: 10 YEARS AFTER (2015). They have not worked together since Shuriken Sentai Ninninger vs. ToQger the Movie: Ninjas in Wonderland (2016). They are most known for their action films together.