Nubs of Doom was an unfinished episode, in which Minimoose was intended to make his debut.
After noticing that GIR is a failure of a henchman, Zim designs Minimoose to be the ultimate henchman. This episode was originally supposed to air before "The Most Horrible X-Mas Ever." However, the series was abruptly cancelled, and the producers would only let the animation team finish one episode, so they chose the Christmas special. Minimoose is most like GIR in that he's a failed sidekick of Zim's, and small and cute in appearance, but otherwise the similarities are limited. Minimoose's only form of communication is to squeak or "Meep!", much like Beaker of The Muppets.
Facts of Doom
- The day before the crew of Invader Zim planned to start animation on Nubs of Doom and "Invader Poonchy", Nickelodeon cancelled the series, thus becoming pointless to make the episode.
- If Nickelodeon had cancelled the series on January 18, 2002 instead of January 17, 2002, "Nubs of Doom" and "Invader Poonchy" would have been completed episodes. This is because once the animation process begins, Nickelodeon cannot get the episodes scrapped because of the production budget being moved forward and submitted, thus they would actually lose money.
- This is the second time that Zim has declared a moose to have failed him (see "A Room with a Moose"); in this episode, he wails, "Why, Minimoose?! Why hast thou failed me?!", similar to his delivery in that episode.
- It's also the second time Dib has unwittingly referenced GIR (see "Hamstergeddon" for the first time). In this case, he imitated GIR's famous "I WAS THE TURKEY ALL ALONG!" speech (see "Backseat Drivers From Beyond the Stars") by yelling, "I was the Suck Munkey all along!".
The voices for this episode have been recorded and can be heard here.