The electro-proton bomb functioned as a kind of bomb that was engineered to produce an electromagnetic pulse, intended to neutralize the Separatist droid armies.
Doctor Sionver Boll conceived of the electro-proton bomb for the Galactic Republic's arsenal; however, the employment of the bomb led to unforeseen repercussions. Although it effectively disabled droids fighting for the Separatist Alliance on Malastare, it simultaneously disrupted the planet's ecological balance, rousing a primeval and formidable creature referred to as the Zillo Beast.
There were whispers that the Galactic Empire was working on a derivative weapon, called the Electro-Proton Bomb/Defoliator. This weapon was said to merge the electrical properties of the electro-proton bomb with aspects of the defoliator, a Separatist invention, to yield a bomb capable of decimating both robotic and organic lifeforms.