|LEGO → System → Exo-Force|
The set consists of the Battle Arachnoid, a six-legged battle machine piloted by a single Devastator. Like many other Exo-Force sets released that year, it features a detachable brick-built robot built into the model's design, which can snap off and be used independently. The cockpit of the Battle Arachnoid can detach to form a small flying craft.
The Battle Arachnoid was created as a replacement of the Shadow Crawler, as the latter was unable to travel through the dense - and living - forest by the Golden City.
- The model features two green tanks; one on the mini robot, and one on the mini ship. There is a discrepancy between images and the instructions as to which green tank the skull is supposed to go in.
- The Spider Boss (from 55000 LEGO Universe)'s legs were inspired by the Battle Arachnoid's legs.