Ghosts

The Monsters are minor characters in The Amazing World of Gumball they appeared in the episode Halloween where carrie took gumball,darwin and anais to a haunted house party.

Appearance
The Monsters appear in all sorts of creepy ways.one appears to be a hamburger.another one looks like a squid with a bag on its head.one looks like an athlete with a basketball for a head and one is missing its head (blows bubbles to speak) as well as a female without a bottom.