12 oz mouse Wiki
12 oz mouse Wiki

The Spider, also known as "Spider-boy", is a gigantic, seven-legged arachnid that emits insect-like squeaks, and groans. Similarly to most spiders, he is capable of leaving large webs and shooting. However, unlike most insects, he can skillfully play the piano and strangely weave arrows.


Spider has a gray body, with two eyes, two mouths, seven legs instead of 8, the spider also has some like human-like features (despite it being arachnid) such as small pieces hair & two ears.


Alliances & Friendships[]

While the Spider is unable to speak and naturally express its feelings, the creature has taken a liking to Rooster, listening to his stories and following throughout Cardboard City. Eventually, in "Farewell", the Spider is revealed to be the hidden identity of CJ Muff, who floats out of the character's body, now being a blue-colored orb. This fact explains the reason why the Spider was so "attached" to Roostre.


Most of Spider's enemies are unknown but considering Spider had to kill the Producer Man to get the Hand out of his brain, a another answer would be Buzby the exterminator as Fitz hired Buzby to hunt down the spider when Fitz encountered her in his home, then Buzby chased her out of the house with a machine gun trying gunned her down then as she escaped she then teleported elsewhere.


While Spider doesn't normally have powers but briefly in the "Invictus" special, when Spider came out of Fitz's house by breaking out the window, she was shown to teleport outside by opening her mouth, she presumably teleported into Q109.

Episode appearances[]


  • While Spider may be a male, it's unknown if this Spider is a female is because she was originally Mouse's Daughter that morph into a spider as shown in a flashback from "Bowtime", she has a ability to weave a giant web in to trapped Roostre in a giant web, weave a arrow, create a web in Mouse's house & cocoons all of Mouse's pizza-boxes, bed & belongs like a real-life female spider would do, however while female spiders create webs to trap flies in, this spider has the ability to kidnapped characters by weaving like Roostre.
  • It's possible that cave Spider took Roostre to, maybe the home of the Spider, though it is shown to be living in the World of Muck in Season 3.
  • He seems to be a expert at the piano in the tenth & twelfth episodes.
  • Despite Spider being a spider, she has only seven spider legs, while real-life one's have eight legs as he is missing a extra leg, the same could be said with his ears, eyes & hair, however like a real spider, he has fangs.
  • It's unknown if this is the same Spider that is both Mouse's Daughter or CJ Muff at same time, since Spider transformed from her & was revealed to be CJ Muff while Roostre with his Hand fated on the ground.
  • Spider seems to now to be allied with Shark & the Rectangular Businessman, since he was hired by them & he is seen playing the piano in their Bank.