How many movies have Hideo Ishikawa and Hiroshi Sunaga collaborated on?

They have worked on 4 movies together! Their first movie together was OOO, Den-O, All Riders: Let's Go Kamen Riders (2011) while their highest rated movie together was Kamen Rider x Kamen Rider Fourze & OOO Movie Wars Mega Max (2011). They have not worked together since Kamen Rider × Super Sentai × Space Sheriff: Super Hero Wars Z (2013). They are most known for their adventure films together.