All hail the Butt Detective!
As I explained in an older post (https://otakutokyojp.blogspot.jp/2017/08/a-very-poopular-attraction.html), the Japanese love to put a scatological twist on any aspect of life, be it education, science or crime.
Take, for instance, Oshiri Tantei (Butt Detective), a gentlemanly Sherlock Holmesian detective who solves the strangest crimes. Not only he is a deep thinker; he's an action man who stops the bad guys by... farting in their face.
Originally the subject of a popular children’s picture book series, the Butt Detective has been recently turned into an Internet anime.
Directed by Ishitani Megumi, these delightful episodes are produced for YouTube and the Japanese YouTube KIDS app.
Here's a link to a few Butt Detective-related videos:
 https://www.youtube.com/results?search_query=butt+detective
And don't forget to check out my guide!