The acorn monster appears in the Halloween special "The Legend of Boo-Kini Bottom."


The acorn monster is a wooden robot created by Sandy. Its head is shaped like an acorn. It has yellow lightbulbs with black pupils to make it look like eyes, and its mouth has two sharp, white teeth. Its body is dark brown.


  • As seen when the acorn monster falls apart, it is filled with acorns.
  • It is a parody of Frankenstein's monster.

Octavius rex2
"Octavius Rex, a.k.a. long, tan, and handsome!"
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