Among the classical Japanese martial schools (koryū) preserved within the Bujinkan, Gyokko Ryū Kosshijutsu stands as one of the most influential. The school of the Jeweled Tiger (or Jade Tiger) is featured prominently in the Nidan-level training of Ninja Training TV (NTTV). This ancient system of combat continues to shape the way Bujinkan practitioners move, […]
If you’ve earned your Shodan (1st degree black belt), you already know: each rank in the Bujinkan isn’t just about learning more techniques, it’s about deepening your connection to the art. At Ninja Training TV, we’re excited to share that our brand new Nidan video series is now available. And it begins by taking you […]
When Sensei Mark Roemke returned from the Koto Ryū Tai Kai in Dublin, he came back carrying fresh insights. Koto Ryū (虎倒流), the “Tiger Knocking Down School,” is one of the nine classical schools transmitted through the Bujinkan. Known for its Koppojutsu (bone-breaking techniques), it emphasizes sharp, linear counters designed to shatter structure and overwhelm […]
This past weekend, Sensei Mark Roemke traveled to Dublin, Ireland to participate in the 2025 Dublin Tai Kai, an international training event focused on the art of Koto Ryū Koppojutsu, one of the classical lineages within the Bujinkan. This year’s training was led by none other than Noguchi Sensei, now the Sōke (grandmaster) of Koto […]
At Saturday’s session in the park, we entered the quiet mystery of Kumogakure Ryū, the “School of Hiding in the Clouds.” How did we train to disappear using Kumogakure Ryu taijutsu? We worked on subtle, unorthodox body movement, letting our hips and spine become unpredictable tools of evasion and misdirection. Rather than confronting force with […]
At Ninja Training TV, we believe that location should never be a barrier to progression in your martial arts journey. That’s why we’ve built a complete online system for earning rank in Bujinkan Budo Taijutsu, led by 15th Dan master teacher Dai Shihan Mark Roemke. Whether you’re just starting out or steadily climbing the Kyu […]
A common theme in training in the art of the ninja is to think and move outside of the box. Sensei Roemke has a new sword training video that teaches a technique called tonbo that is a great example of this. Video: Dai Shihan Mark Roemke teaches the sword cutting technique Tonbo. He learned this technique from […]
This is Mark Roemke. I am a 15th Dan practitioner of Bujinkan Budo Taijutsu. This is our initial blog where I will be diving deep into discussions of this art. In this first blog, I explain in the video below a little bit about myself and the art of ninjutsu, and specifically, what the art of the ninja means to me. I started studying martial arts when I was seven years old. I have been studying for a long time. I’ve been punched, kicked, and thrown around quite a bit. I’d love to tell you more about what I’ve learned along the way, and what gets me stoked about martial arts. Hopefully you will […]
It is safe to say that it’s not generally known when the first person picked up a short stick and hit something or someone with it, or used it for extra stability to support themselves. The use of the stick as a tool or weapon is ancient and certainly predates recorded history, but what is […]
By The Tai Chi Ninja (a.k.a. Kyle Connally) The “Manrikiguasari” (10,000 Power Chain) or Kusari Fundo (Chain Weight) is an extremely adaptable and concealable weapon, consisting of a chain anywhere from 12” to 48” long with various sized weights attached to the ends, and comes in a variety of chain styles. Whipping and spinning around […]
15th Dan Bujinkan Shihan with 30+ years of experience teaching traditional ninja arts across the globe.
Founder of NTTV, featured in 100+ instructional videos and online courses.
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