Riken kata, Chi no kata level - Shinden Fudō Ryū Dakentaijutsu
Video of Riken no kata
Riken, 理拳, reason fist, ריקן, is a kata that forms part of the Chi no kata level of Fudo Ryu Daken Tai Jutsu learned as a part of the Ninjutsu Techniques syllabus in Jinenkan, Bujinkan and AKBAN.