Here's something I heard that is interesting…This was never in English, but Yami Yugi (Atem) knowing all about his past, knew he was the pharaoh and was supposed to go to the afterlife. He would be sent here after losing a duel, so he dueled Yugi. He wouldn't be beaten that easily, so it was a real duel between Yugi and Atem. Yugi wins, and Atem goes to the after life.