Diablomon (Teuflemon in the original version) is a cacodæmon who appears as a giant, super-deformed folkloric devil. It seems to be lacking legs, its lower body fading into increasingly transparent flames that seemingly spring from nowhere and its face has a distinct feline look. Ktep-Kubo arrived together with Lord Nabos and assisted him, had seemingly no rank of nobility and was much weaker than Lord Nabos.