How many movies have Koichi Yada and Shingo Osawa collaborated on?

They have worked on 6 movies together! Their first movie together was Juken Sentai Gekiranger vs. Boukenger (2008) while their highest rated movie together was Kishiryu Sentai Ryusoulger VS Lupinranger VS Patranger (2020). They have not worked together since Kishiryu Sentai Ryusoulger VS Lupinranger VS Patranger (2020). They are most known for their adventure films together.