MegaCorp Robot Guards were robotic enemies assigned to patrol MegaCorp's important facilities. They were capable of vaporizing enemies with their huge cannons from a very far distance. If Ratchet got too close to them, they started rapid-firing at him, causing a lot of damage, and then hovering further away. Therefore, it was recommended to use a long-range weapon to defeat them. They took a lot of damage, unless a powerful weapon such as the RYNO II was used. They were only seen on planets Todano and Smolg. Their armor deteriorates with damage.