The Uggernaught was an Ugnaught-made walker manufactured by Bespin Motors.
The walker had an open cockpit where the driver and gunner were seated. The gunner was positioned towards the rear of the walker, behind a protective plate.
The walker was fitted with a cannon and a projectile launcher to the walker's right and left respectively. The Uggernaught could move quite fast, and its cannons were also capable of rapid fire.
Imperial-loyal Ugnaughts employed several Uggernaughts in a confrontation with former Sith apprentice Galen Marek and Jedi Master Rahm Kota during the Great Jedi Purge.