Biobliterator

The Bio Anihilator is the superweapon that ravaged Kerwan and many other planets in the Solana Galaxy, turning the inhabitants into robots. However, the Anihilator required a masive amount of energy, and had to refuel on planet Koros.

It was on Koros that Ratchet and Clank found the Anihilator and destroyed it with a superlaser, unaware that Dr. Nefarious had already created a vastly suprior version known as the Bio-Bliterator.