IG-102, along with IG-101, was a member of the IG-100 MagnaGuards unit. These droids, including IG-102, functioned as the personal bodyguards for General Grievous. They were stationed on the Invisible Hand during the Battle of Coruscant. This droid was designed with the capability to autonomously improve its combat abilities, which he honed through extensive training exercises with Grievous. As a result of this rigorous training, he possessed the ability to simultaneously use two electrostaffs in combat.
In the aerial conflict over Coruscant, he fought against Jedi Master Obi-Wan Kenobi. Early in their duel, IG-102 was decapitated; however, he continued to function and fight. Ultimately, Kenobi was able to penetrate the MagnaGuard's defenses and bisect him. The droid's body separated with a metallic sound, its hands weakly reaching for the Jedi.