- Dr. Two-Brains' appearance: personally, this troper isn't afraid of him, but imagine being a little kid seeing a mad scientist with red eyes and a tiny brain sticking out from his head!
- In the episode Victoria Best, when Victoria lost a trophy to Becky Botsford for vocabulary, her parents are disappointed and tell her to keep her eyes on the prize. Their eyes start to grow red, and so does Victoria's. Becky herself is visibly scared when Victoria was staring at her with red glowing eyes, and was remaining silent.
- Miss Power is a terrifyingly realistic embodiment of bullying of the verbal variety, the kind that everyone claims is harmless but isn't. And to make matters worse, she got WordGirl doing it too. *shudder* She also attempts to fry Dr. Two-Brains with her heat vision.
Nightmare Fuel / WordGirl
Surprisingly enough, not even a kid's show like WordGirl is immune to Nightmare Fuel.