__NOWYSIWYG__ The 4-Speed Walking Unit (originally known in Japan as ４そくほこうユニット (4-Leg Walking Unit or Quadrupedal Walking Unit)) is a set of robotic arachnid legs used for racing on all surfaces though gives the user a hard ability to move. A Bug Robot and an Arm Machine can be synthesized into this at Fotbar Laboratory. Its Tire HP is 110.