Gerald from "Hey Arnold":

1

Tulio and Miguel from "The Road to El Dorado":

2

Plank from "Ed, Edd, and Eddy":

3

Krum from "Aaaah!! Real Monsters":

4

Artie, the strongest man in the world, from "Pete & Pete":

5

Skeeter from "Doug":

6

Mrs. Nesbitt from "Toy Story":

7

The Pixar lamp:

8

REPAIR MAN-MAN-MAN-MAN-MAN from "All That":

9

The Ski-Free monster:

10

Fluffy the three-headed dog from "Harry Potter":

11

Wilson from "Home Improvement":

12

13

The Big Head Mode cheat in "Goldeneye 64":

14

Bananas In Pajamas:

15

Urkel:

16

The leg lamp from "A Christmas Story":

17

Jimmy Neutron's mom:

18

Powdered Toast Man from "Ren & Stimpy":

19

A LEGO man:

20

A champion on "Guts":

21

Reptar from "Rugrats":

22

Oblina from "Aaah!! Real Monsters":

23

Robbie from "Dinosaurs":

24

A Tomagatchi:

25

Daria and Jane from "Daria":

26

Stick Stickley:

27

And, the scariest thing of all, The "Are You Afraid of the Dark" opening credits:

28