One of the Legend-Arms that can change itself into a weapon. Legends say that such weapons would "save the world if held by an angel, or destroy it if held by a demon". Zubamon has the "Twentiest" data, and often shouts "I am the Twentiest!" without knowing what it means. It hates anything not fair or above board, and always seeks sharpness. Days of sharp gags and sharp battles make it happy. It charges head-first with its Twenty Dive move, but Zubamon's power manifests when it turns into its weapon form.