They were unknown to the Luminopolis population, and according to Pepper Fairbanks, they were teleported into city limits as unidentified robots. Kip Darling feared that they were released to take advantage of the Z'Grute distraction so that they could invade the city.
A Scout Minion could be seen being grabbed by the Light Eating Z'Grute and being thrown to confront the player characters.
They are similar to Protomantises.
- Ratchet & Clank: All 4 One (first appearance)