Ohma-D'un super battle droid

The Ohma-D'un super battle droid was one of the more unusual types of battle droid deployed by the Confederacy of Independent Systems during the Clone Wars. It seems to have been designed as a specialised science droid for use in combat zones, with enhanced sensor equipment.

The droid was apparently a modified version of the B-2 battle droid, with a similar chassis. Its most obvious modification was a large, broad head, with its front mostly taken up by a pair of bright orange photoreceptors and a cluster of aerials on top, further augmented by two sensor arrays rising behind from the back of the shoulders. It also boasted more dextrous hands than standard super battle droids, with three long, slender fingers and an opposable thumb, and its twin blasters were mounted on the right shoulder rather than the wrist.

The type's Seperatist designation is unknown; it owes its recorded name to the Naboo moon of Ohma-D'un, where several droids of this type were involved in the release of the Swamp Gas toxin. They were analysing the results of the attack on the Gungan colony when they were encountered and destroyed by Obi-Wan Kenobi and his team.

Behind the scenes
These droids appear only in Issue 51 of Star Wars: Republic, where they are given no name. In the novel ''Yoda: Dark Rendezvous, however, Jedi Master Maks Leem asks if a squad of attacking droids are "Ohma-D'un super battle droids"&mdash;the attackers here are Confederacy assassin droids, but the dialogue reveals the name by which the droids encountered on Ohma-D'un must be known to the Galactic Republic and the Jedi Knights.

Appearances
The New Face of War ''Yoda: Dark Rendezvous