This American guy named Chris O'Neill is a member of Aichi's ninja troupe named "Tokugawa Ieyasu and Hattori Hanzo Ninja Squad" to promote tourism in the prefecture.

They perform at Nagoya Castle and elsewhere. He was selected from 200 applicants from 40 countries. I ran into him when while exiting the castle. Too bad I didn't catch their show. He was very friendly. He's very good at doing these ninja stunts.
I have to compliment Aichi for forming such a PR troupe and including an amusing foreigner to boot. I'm sure they are getting their money's worth in terms of goodwill and good impressions on tourists.