Scorpenek annihilator droid

The Scornpenek annihilator droid was a massive droid contructed by the Colicoid Creation Nest. Basically a much larger version of the Colicoids' droideka, the annihilator droid was armed with two rapid-fire laser cannons on both arms. It also carried a combination particle-energy shield, similar to the shield produced by the annihilator's smaller cousin. Due to this shield, droidekas would position themselves inside the annhiliator's shield for more protection. With fewer than one hundred annihilators on Colla IV, the Colicoids placed them around strategic or political resources.

In the later stages of the Clone Wars, Republic forces launched an attack on Colla IV, where a single annihilator droid took out three of the four platoons of clone troopers that have been advancing on the shielded factory. Advanced Recon Commado Stec was one of the survivors. Knowing more Republic forces would arrive, a CIS task force was arranged by the Colicoids to ship the annihilators to the front lines of the war.

With the ability for a single annihilator to destroy a dozen or so AT-TEs, these droids placed a major part in the Separatist victories at Palanhi and Formos.

In the Outer Rim Sieges, Republic commanders had to send a large amount of clones to take out a single annihilator, causing the Republic to further curse the massive droid.

Like all Confederacy battle droids at the end of the war in 19 BBY, the annihilators were deactivated when the new apprentice of Darth Sidious, Darth Vader, sent the deactivation order accross the Galaxy from Mustafar. However, the remaining annihilators, on the order of Emperor Palpatine]], were taken in by the Imperial Department of Military Research. Some even became stationed at Palpatine's citadel on Byss.