Bio Droid

The Bio Droid/JK droid (Jedi Killer Droid) is a droid type built by the 'Five Families' on Ord Cestus, it was originally a personal security droid. The droid proved difficult for even Jedi Master Kit Fisto to defeat. It produced metal tentacles to dispose of its enemies and used a powerful absorber shield to protect itself against its enemies' weapons. Called the 'Bio Droid' because a native alien species was used as a brain due to its ability to use the force. Count Dooku appeared to be interested in buying some and modifying them to make them dangerous for use in battles against the Galactic Republic. however this proved to be a trap to force the Republic to use Orbital Bombardment to stop the production of the droids. Even if Dooku had been serious, the mass production of the droids would have required cloning far beyond the skill of the experts at the time. Also, the Dacta Worms that were the brain proved to be extremely empathic and went insane if someone died near them.

See The Bio-Droid Threat