MPU-100 is made by KPF's [my robot police force] military branch, but Chief [the leader of KPF] confiscated it after the likely realization that if people started to know the existence of this thing, it would start an arms race among surrounding nations. It's armed with two giant pincer swords, eight nuclear missile silos on it's back, and two battleship cannons that fold over the top to fire. Programmed to activate if KPF itself is put at major risk, it's AI is overly blood thirsty to guarantee victory at any cost, and also because KPF took the darn thing before any restrictive coding was added.