Bigfoot

The first mech of the anti-Aggressor armored walking weapon "War-Mech".
A bipedal weapon that was developed and operated as a flagger of humanity who rebels against the Aggressors before the advent of PA Gears. The prototype was launched in 2029.

One year behind the rollout of the anti-Aggressor armored battle vehicle "Serpent". But the result was disastrous. Despite having strong armor and high firepower over "Serpent", it was less maneuverable and was just helpless to the gigantic creatures without the infantry support. (It is ironic, but this became a factor that eventually helped to develop the PA Gear) Since then, many updates have been made, and now it has proudly became a walking tank that has largely deviated from the original concept.