Filming took place at Studio Pierrot and Vileil Studios in Tokyo, Japan. Seiji Mizushima also commented that being such a work of animation, great care was taken to make sure that the animation was done in the style of the Shaman King manga, the development of animation having ended up being much longer than initially expected. Later, the animation was checked by the artist Takehiko Itou, who was the character designer of the series. The title and episode names were decided only a few days before the actual airing, since the staff was still uncertain how the series was going to end.
Anime News Network (ANN) reported that the reason for the decision to include anime was to make the series compatible with PC and video game players, but it was also intended for children. Despite the inclusion of anime, some people complained about the decision to include violence. As a result, the episodes are rated with a 17-18 age rating, having most of them rated 15. d2c66b5586