SIR (Invader Zim)
S.I.R. Stands for a Standard-issue Information Retrieval unit. It is a form of information-gathering robot used by the Irken race in the TV show Invader Zim. They are designed to assist any Invader in their conquest of planets. Each Invader gets a SIR Unit for their mission. Unlike other invaders, Zim received a unit made from old SIR parts and junk by the Almighty Tallest. This unit is named GIR, who is Zim's sidekick and a main character in the show. The only other named SIR unit is MiMi, who belongs to Tak.
Abilities
SIR units are equipped with various weaponry and gadgets. Here is a list of all their known functions and utilities:
- Laser eyes
- Head-mounted rocket-launchers and machine guns
- Circular saw-blades
- Self-destruct capabilities
- Extending grappler arms
- Hover-jets in legs; thrusters can be removed and the empty space used for storage
- Ability to fire electronic-crippling fragments
- Ability to discharge energy blasts
- Giant slingshot in head
- Compatibility with custom upgrades, such as Mimi's power arm and GIR's memory tank
- Ability to pilot Irken vehicles
- Collapsibility for easy storage
- Thermos
- Free will activated when the mission to which they have currently been assigned is threatened
- Communication with the owner through the owner's PAK
Additional Features
A SIR unit's memory disk inside its head records all vital data witnessed by the SIR unit. Though not necessary for the unit to function, it can be used to override basic SIR programming and control the unit from a remote location, as stated by the computer in Tak: The Hideous New Girl.