Warbots were robots created by Nefarious which were programmed to destroy the Galactic Rangers. The warbots' armour were made of Raritanium alloy. There were two types of basic warbots: the blue ones who appeared in most locations and the red ones that only appeared during the Blarg invasion of Kerwan.
The normal blue Warbots were found in most of the levels. They had blasters which dealt small amounts of damage. Some also utilized Jetpacks, allowing them to attack from above. Basic Warbots are first found on Veldin.
A special red variant of Warbots were used for the invasion of Aleero City, dropped off by, and later used to destroy the Dreadship. These elite Bots carried Combusters.