Troopers with very low health could lose some parts of their bodies, such as an arm or, as already mentioned, their head. In case of being decapitated, they kept firing randomly like a turret.
MegaCorp Trooper v2.0
MegaCorp Trooper v2.0s appeared on planet Yeedil, they appeared identical to normal Megaorp Troopers until they finished teleporting in, at which point their eyes and other glowing spots would turn red instead of yellow, and their armor was darker and much more resilient to Ratchet's attacks. They were also much stronger than their previous incarnations.
They were originally intended to have an entry in the Monsterpedia, however this was cut.
- Ratchet & Clank: Going Commando (first appearance)