Season 1: Ep. 2 - Bestest Friend

Rob Hummel, Roman Dirge, & Jhonen Vasquez April 13, 2001 (2001-04-13) Zim notices that all the other children in the school have friends except him. This is seen as a threat to his all-important mission, as well as a potential exposure of his real identity. He decides that as he doesn't want to appear strange, he must also have a friend. Zim chooses an annoying classmate named Keef to be his best friend and once people have acknowledged that Zim has a friend, he attempts to abandon him. Keef, however, does not take the hint and so Zim must use more drastic methods to dispose of him. Keef tries to throw a surprise party for Zim, which does not come as a surprise on account of GIR, but instead, Zim makes Keef mistake him for a squirrel.