What the Banana Big Battle

Synopsis

Aozora Town has been turned into a jungle! It's the work of a chimpanzee demon beast. Grumbling that summer break means he can't go anywhere, Kotaro sees the jungle and is over the moon. He transforms into Yellow Ganbar to give chase, but it looks an awful lot like he's just goofing off — and Yousuke and Rikiya call him out. Yaminorius, equally unimpressed by the beast's antics, powers it up into Bananan. When the Defense Force rolls in with tanks, the beast turns the tanks into bananas.