This advanced combat droid stalks into battle on spider-like legs, blasting its multiple laser cannons at Republic forces. The Techno Union has created scalable sizes; smaller sizes excel in agility while a much larger size is used as combat artillery. Octuptarra droids take part in battles on Christophsis, Mygeeto and Coruscant, among others, and guard General Grievous at his secret headquarters.

Features opening top hatch, firing missiles and articulated legs.