The Trade Federation, the main antagonists in the film, utilize a massive droid army, composed of:
* Battle Droids: The primary fighting force of the Separatist army, these droids are primarily used for infantry warfare.
* Super Battle Droids: A more advanced version of the Battle Droid, equipped with stronger weapons and a more sophisticated AI.
* Droidekas: Heavy, rolling droids with powerful shields and heavy weapons.
While droids appear in other Star Wars films, the sheer scale and prominence of the droid army in The Phantom Menace make it the most memorable and significant example.