Droideka

Droideakas (also known as Destroyer Droids) were an advanced class of tripedal military Droids fielded by Trade Federation and latter, the CIS of Colicoid manufacture. Droidekas served as advanced heavy infantry, being able to quickly move by curling up into a wheel shape and rolling, being very durable due to sheilding resistant to small arms and heavier than usual armor and armed with two double mounted automatic blasters, making them powerful anti infantry troopers that were even a threat to Jedi. However, their high cost serverly limited production. They saw service during the battle of Naboo and during the clone wars.