S.I.R. Units

SIR units (Standard-Issue Information Retrieval units) are small robotic drones assigned to Irken invaders; they obey their master's every command (with the exception of GIR and other malfunctioning SIR units) and are exceptionally effective and deadly in combat. In addition, SIRs are very versatile in their weaponry, possessing laser cannons and buzzsaws (contained in their own heads), as well as jet boosters installed in their feet.

(editing shall recommence soon)