ROBOPAK is a small robot from Pikmin Chronicles. He makes his debut in Chapter 5, but does not have any dialog. He will help you attack the cave beasts, though. At the end of the chapter, he is attached to the Radioactive Meteorite so his camera, which is linked to a computer in Olimar and Louie's office on Hocotate, can be monitored and to prevent the meteor from hitting another planet.
He is set to appear in a future episode.