Sign Zombie

The Sign Zombies make their first appearance in "Tree Trunks". The Sign Zombies are first seen in the episode when Tree Trunks goes off on her own while following an evil butterfly. When Finn and Jake find her, she is surrounded by them. Tree Trunks does not know about their evil nature, and starts a picnic with them. They are distracted by Finn and Jake and begin fighting them. At one point of the fight, Finn tries to protect Tree Trunks and the Sign Zombies begin scratching him. The fight ends when Jake jumps on top of Finn and morphs into a giant ball. Jake then rolls away from the Sign Zombies, knocking them in various directions. Sign Zombies are located in the Evil Forest. Finn refers to Sign Zombies as "Evil Sign Posts".

Appearance
Each sign zombie looks different and has a different sign on the back of its head. Some are shaped as stop signs, others like regular little signs, etc.

Various Signs
The following sign zombies are seen in "Tree Trunks:"
 * NOT HERE
 * STAY AWAY
 * OFF LIMITS
 * DO NOT ENTER
 * BEWARE
 * DO NOT COME