An ancient creature accidentally unearthed on Malastare during an intense battle of the Clone Wars, the Zillo Beast was a monster of legend. The enormous animal proved to be nearly invulnerable to Republic weaponry, prompting intense interest from Chancellor Palpatine. At his order, the creature was incapacitated and transported to a supposedly secure research facility on Coruscant. The Zillo Beast would not be caged, however, and it broke free from its restraints, running wild through the crowded thoroughfares of the capital, leaving swaths of destruction in the wake of its titanic rampage.