: Marco’s fanatical hatred is grounded in a mundane, tragic past. Before Hao destroyed his life, he was a car salesman who ran "Super Marco Limited" with Luchist. This explains why their Archangels— Michael and Lucifer —are actually manifested from high-end cars.

: Fans have pointed out that the 2021 adaptation often relies on still frames for action, which some feel fails to capture the dynamic intensity of the manga's original panels. Shaman King (2021) Anime Episode #39 - "The Summit"

: Critics noted that this single episode adapts a massive amount of manga material—roughly an entire volume—leaving little room for the emotional weight of Jeanne’s origin or Yoh's dinner revelation to settle.

: It is revealed that Jeanne was never a "Holy Maiden," but an orphaned girl from France with high furyoku. Marco and Luchist adopted her and fed her extreme ideals to transform her into a "killing machine" against Hao.

While the episode is rich in character lore, it has been criticized for the .