Also known as Droidekas, Destroyer Droids were built by the Colicoids of Colla IV, and used frequently by the Trade Federation. They could fold up into a wheel and move quickly. Once upon their target, a Destroyer would unfold and activate its personal energy shield. They were armed with twin blaster cannons on each arm, no pun intended, and were fearsome even to a Jedi. It took something like a cannon on a starfighter, or a clumsy Gungan to take a Destroyer Droid out.Destroyers were also used by the Confederacy of Independent Systems after the Trade Federation joined, and used throughout the Clone Wars.