'90s Halloween Costumes: Helga, Arnold, and Gerald From "Hey Arnold!"

What to wear for Helga: A pink dress over a white t-shirt, a pink bow in your pigtails, and red Converse.
What to wear for Arnold: A blue sweater over a long red plaid shirt, jeans, and black shoes. Don't forget the tiny blue hat!
What to wear for Gerald: A red sports jersey, jeans, and red high-top converse.
How to act: For Helga, like you loathe everything and everyone. For Arnold and Gerald, act upbeat and down for anything.