Roba-san Kick 18

The Roba-san Kick 18 (ロバさんキック１８号) is an anime-only giant mechanical kicking machine piloted by Porche and Hamburg. It is called Donkey Kicker 18 in the Funimation dub.

Design
The machine is a large rhombus cube in shape and has exactly twenty-five large hooves that extend outwards. Its cockpit resembles a horse's head and it runs on tank-like caterpillar tracks that are powered by bicycle pedals.