75086 Battle Droid Troop Carrier (Twelve).7670 Hailfire Droid and Spider Droid (2).4478 Geonosian Fighter (2 (Geonosis) version 1).In the LEGO Star Wars video games (except for the Clone Wars), the normal and Geonosian Battle Droids come with a thin two-stud piece and black antennae piece on their back.These arms can be taken off easily, but break with slightly less pressure to the older variety.

Because they have new arms they can vertically grip Guns. Since the 7662 Trade Federation MTT set, Battle Droid minifigures have had arms with vertical gun grips, as opposed to the older horizontal grips. In addition, the OOM series such as the Battle Droid Commander, the Pilot Battle Droid, and the Security Battle Droid were given control over some groups. The basic battle droids, with no markings are the B1 series. The droids could operate in almost every environment, including underwater. They had little ability to think independently, and were very vulnerable to tricks. Battle droids were designed to defeat their enemies by sheer number of units. Regular Battle Droids had no mind of their own, and they were controlled by a central computer. After being programmed, they were sent on missions against the Republic, or used to spread fear on star systems opposing the Trade Federation.

They were usually produced in plants on distant planets such as Geonosis and Hypori. They appear in many Star Wars sets, especially from Episode I, Episode II and Episode III. They form the majority of both organisations' armies. Battle droids were used by the Trade Federation and later the Confederacy of Independent Systems in the Clone Wars.

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