Zombie 9-year-olds

Zombie 9-year-olds are enemies on the Mars Ranch. They do not have legs, and instead have a wheel.

The zombie 9-year-olds were fans of PewDiePie who were taken to the Mars Ranch after the Sub-Bots took over. During the capture, the 9-year-olds were zombified and became hostile. According to a sign on the Mars Ranch, their loyalty to PewDiePie resulted in psychosis and self-mutilation of the legs.

The zombies say "bonus meme".

Behind the scenes

 * The reason for their lack of legs is to make them easier to animate.