A model of assassin droid was manufactured by the Galactic Empire during the time of the Galactic Civil War. The purpose of these droids was to subdue the Rebellion and to inspire fear throughout the galaxy.
After the Empire determined that their initial assassin droid designs possessed excessive intelligence, they proceeded to produce a model that was more robust but less intelligent. The original models were repurposed as labor droids, assigned to perform routine maintenance and cleaning duties. One of these original units made contact with a Jawa spy named Tikkii. This droid then escaped from the factory where it was stationed, managing to smuggle out an Information Crystal containing crucial data about the facility. However, the droid was apprehended and sent to a salvage yard to be scrapped. Another Jawa, Maliiki, reconstructed the old droid, but he sustained injuries when a newer assassin droid model launched an attack. A Rebel, disguised as a Jawa, subsequently constructed a droid with the intent of rescuing the Jawa, and then activated the rebuilt assassin droid.
Following this, the Rebel constructed another droid with the purpose of infiltrating the assassin-droid factory and reprogramming the droids. The software contained on the data disk effectively reprogrammed all the assassin droids, transforming them into dancing droids.
The assassin droid employed a non-lethal, arm-mounted, high-powered electronic shock emitter to disable adversaries using a blinding flash of light, instead of a standard blaster. During gameplay, a typical Assassin Droid will exclaim various phrases to the player: "Prepare to be disintegrated!", "Say goodbye to your circuits!", "There's nothing like a warm blaster to brighten your day!", "I'll turn you into Hydrospanners!", "(Chuckles) Nothing pleases my programming like more victims!"