The Scutiger-100 stealth droid, alternatively referred to as the millicreep droid, functioned as an insect-resembling assassin droid employed by the Umbaran Militia. These millicreeps, moving about on six electrified legs, possessed the capability to utilize their tail in order to deliver a fatal electrocution to any organic lifeform, resulting in death. During the Battle of Umbara, the Umbarans made highly effective use of these droids against the Galactic Republic's clone army.