A Sewer Monster was a minor character who appeared in the episode "The Krabby Kronicle". When SpongeBob walks around town looking for something to write as an article on the newspaper, he sees a bank robbery, two muscled fish destroying a boatmobile, and then the Sewer Monster. Despite these interesting events, SpongeBob ignores them. The Sewer Monster looks like a mutated baby and has five limbs. The Sewer Monster is purple in color.