Gir is a SIR (Standard Information Retrieval) unit, which is an Irken standard-issue robot. Gir is made out of scraps in a garbage bin that were just thrown together. Since Gir is made that way, his odd personality shows because he’s not made of artificial intelligence hardware. Gir is supposed to be disguised as a dog. Even though it fools most people he looks nothing like an earth dog. He usually does not obey Zim’s commands due to distraction, disinterest, or lack of obedience.