As he exists in Yugi's body, his appearance is largely the same as Yugi's, although many alterations are made when Yami takes control such as his eyes. The main difference is that Yami Yugi looks more like a teenager than Yugi, is taller and has a deeper voice. In the Japanese version, though, very little change can be detected in Yugi and Yami Yugi's voice. His eyes are also narrower with a more intense, determined gaze. He also appears more muscular.