Ohma-D'un super battle droid

The droid was apparently a modified version of the B2 super battle droid. They had the same chassis, but were fitted with swamp gas sprayers.

The type's Separatist 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.

These droids appear only in Star Wars: Republic: The New Face of War, 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". Jai Maruk quickly corrects her that 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 Order.

• The New Essential Chronology