A Modvark is an oddly proportioned Oddballz, with hind legs that are practically triple the length of its front pair. Mojo thus has a stature that slopes downwards, with the tip of his crescent-curled tail being the highest point of his body, while his long-snouted face is the lowest. He has small, pointed ears, eyes that are usually half-lidded in complete serenity, and a bulbous black nose. He is the only Oddballz to wear clothes: a black turtleneck and leopard-print pants at all times, sometimes accompanied by sunglasses, a beaded necklace, and/or a black beret.

Mojo is the epitome of cool in a beatnik sort of sense. He always keeps a level head, no matter the situation, though he does have a tendency to avoid circumstances that are noisy and chaotic. Peaceful and serene, and preferring a state of affairs that fall in the same line, the only time Mojo busts loose is when he hears a catchy bit of music, jazz being the best.