It is a big, four-legged canine-like mutant. It has a pale brown skin and brown fur on its back, neck, tail and legs. It has four claws on each feet. Its body has several lumps, while its face has spikes. It has orange eyes without pupils. The teeth from its lower jaw are coming out in the opposite direction. Its teeth resembles spikes.
- Ben 10 vs. the Negative 10: Part 2 (first appearance)