[Kamen Rider Decade]

It didn't show a use beyond carrying the Zords, what the Rangers did while they had both the Thundersaurus and Dino Stegazord combined into one mode with weapons and helmet from Mezodon could have been done by a tidal wave, roller coaster, or just about anything they could have found and worked with. Brachio was there and a matter conveince not because they had to use him.