Tropes
- Bland-Name Product
- The icon which Zim clicks to test out the germ goggles is clearly meant to resemble the America Online logo.
- Also, MacMeaty's.
- Freak Out: Zim, when he sees all the germs he's surrounded by.
- Horrifying the Horror: The Almighty Tallest are genuinely unsettled by Zim's erratic and paranoiac behavior stemming from his newfound germaphobia, knowing first-hand just how psychotic and destructive he is.
- Neat Freak: Zim becomes one in this episode.
- No Celebrities Were Harmed: As Zim's germaphobia gets worse, he starts wearing tissue boxes on his feet a'la Howard Hughes.
- One-Word Title
- Overly Long Scream: When Zim sees how germ-infested his base is, he screams so long that he has to pause to take a breath.
- Shout-Out: In the movie within the show, the aliens are defeated by human germs.