The romanization is "Yuugiou".
An anime about a boy, Yuugi, who completes the Sennen Puzzle and gains a dark side, Yami no Yuugi or Dark Yuugi.
Many people call it childish, but if they would watch the original or read the manga, it's much darker.
Series 0: The beginning, showing a very dark side of Yuugi's dark.
Series 1: Battle City/Duelist Kingdom/Ancient Egypt Arc. Duelist series.
"Yugioh (Yuugiou) is an anime that shows many good things."
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