The assassin droid IG-88 was the product of shortsighted droid developers working for Halowan Laboratories. The battered chrome war droid began life as part of Project Phlutdroid. As soon as he achieved sentience, IG-88 ran amuck, and slaughtered the Halowan scientists. Activating and downloading his consciousness into three mechanical "clones," IG-88 was able to quickly spread his brand of destruction across the galaxy. The droid had achieved a certain amount of notoriety before he answered Darth Vader's call to capture the crew of the Millennium Falcon. He had killed over 150 beings and had a "dismantle-on-sight" warrant in over 40 systems. IG-88 is a tall, spindly humanoid droid completely loaded with all manner of concealed weaponry, including a deadly gas dispenser, a flamethrower, a sonic stunner, a pulse cannon and a neural inhibitor projectile launcher. IG-88 was originally referred to as a "chrome war droid" in the script, and was also called "Phlutdroid" during production. These development sketches by Ralph McQuarrie show a much sleeker initial design.