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This character exists primarily within the Sonic Boom continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

Quotation1 Behold! My Caterpixels! Quotation2
Nominatus, "Nominatus Rising"

The Caterpixel[1] is a character that appears in the Sonic Boom television series. It is a mass-produced, caterpillar-based digital robot created by Nominatus. They serve as Nominatus' personal brand of Badniks and make up the majority of his army.


The Caterpixels are based on real-life caterpillars, both in shape and in the way they move across the ground, stretching their segmented body parts up and down to crawl. Their bodies consist each of four spherical segments with a head on the front. They possess grey-white underbellies, disk-shaped recesses on each side of their body segments, and sharp plating on their backs. Their heads on the other hand, have plating around the face area with flat fins on the sides and top. They also have a large white-grey jaw with fangs, two antennas protruding from their nose areas, sharp ear-like horns, and menacing yellow eyes with orange sclera, eyebrows and dark bags.

The Caterpixels come in two color variants: red-violet and lavender with pale yellow antennas, and mint and green-yellow with purple antennas.


TV series

Season two

Created by Nominatus, the Caterpixels were brought into the real world with the Build-it Box to battle Sonic and his allies when the heroes opposed Nominatus' plans to conquer the world. The Caterpixels and their allies had the upper hand at first, but got pushed back when Dr. Eggman and his Badniks came to Team Sonic's aid. The Caterpixels were then sent back to cyberspace by Tails with the Build-it Box.[1]


Like Dr. Eggman's Badniks, the Caterpixels are silent, single-minded, ruthless in battle, without personalities, and unquestioningly dedicated to their leader's orders.[1]

Powers and abilities

The Caterpixels are noted to be tougher to defeat than Dr. Eggman's Badniks. When curling up, they can protrude sharp spikes from under their armor to injure opponents attacking them directly. Their physique also allows them to slither around attacks, making them hard to hit.[1]


  • The Caterpixels' name is a portmanteau of "Caterpillar" and "Pixel".
  • The Caterpixel is very similar to the Caterkiller, an enemy that debuted in the original Sonic the Hedgehog video game for the Sega Genesis. Like the Caterkillers, they can even injure their opponents via spikes on their bodies.


  1. 1.0 1.1 1.2 1.3 Raut-Siezac, Natalys (15 April 2017). "Nominatus Rising". Sonic Boom. Season 2. Episode 75. Boomerang.
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