3B3-1204 was a Trade Federation B1 battle droid in the service of Viceroy Nute Gunray's Droid Army. In 32 BBY, 3B3-1204 was a part of the force that invaded and later occupied the world of Naboo, at Gunray's behest. The droid and his unit were stationed in the Theed Hangar to guard the personal starship of the planet's queen, Amidala. 3B3-1204 and the rest of his unit were soon after destroyed by Jedi Master Qui-Gon Jinn.