Matoran Ride Armor, #13, model "RG," A.K.A. "Rakugosha". Used to match the power of titans. Kuragari Nui holds the factory that makes them. They are currently being used to keep Reidak and his soldiers at bay.
The main weapon. Used for demolition and heavy melee attacks.
The secondary weapon. Used for light melee attachs.
Wings, for stabilization and flight.
Front of armor is up, to expose the rider.
The individual rider.
Pretty big, ain't it? (The one on the left is Atamagaokashii.)