Nielsen Ninjas
Martial Arts:
A Rosenbach Warrior Training Branch
Self-discipline. Self-control. Self-respect.
Welcome!
Let's get to know each other
Nielsen Ninjas started in July 2019 in Bennington NE by Jake Nielsen & Katie Nielsen.
The Rosenbach Warrior Training Branches (RWTB) go back over 50 years, and we are proud to be the Bennington Branch.
Check out all we have to offer and we can't wait to meet you!
Project Showcase
Class + Schedule + Cost
We have weekly classes and some seasonal sessions
Stop in and check out a class or email us for more information
Lil Dragons (5-9yo)
Introductory Martial Arts class in a fun, energetic, accepting environment.
Confident + Courageous + Kind
10 week sessions
Contact us for the current session schedule
Tuesday 5-6pm
$150/session
Mini movers & me
Playful Movement for Ages 0–2!
A joyful, sensory-rich class where little ones discover movement, music, and connection in a nurturing environment.
✔ Support motor skill development
✔ Encourage curiosity and early coordination
✔ Strengthen parent–child bonding through play and music
Perfect for babies and toddlers beginning to explore, move, and grow!
Move Together + Grow Together
6 week sessions
Contact us for the current schedule
Saturday 9-930am
Cost $100/session
JR & Adult Weapons and RWTB Combat
Mixed martial arts class for ages 10+
Combines tae kwon do, ninjitsu, hapkido, hand to hand combat, weapons forms and self-defense
Self-discipline + Self-control + Self-respect
Tuesdays: Jrs 6-7pm
Adults 630-730pm
Thursdays: Jrs 630-730pm
Adults 7-8pm
$60/month/student
Family discounts available
Krav Kali Defense
Adults only class (ages 16+) with realistic combat and self-defense. Hybrid Krav Maga and Filipino Kali weapons tactics, & real life scenarios.
Intense + Effective + Empowering
Mondays 7-8pm
$60/month/student
First responder/Military discounts available
Move & Groove
High-Energy Fun for Ages 3–5!
An exciting, movement-packed class where little ones explore rhythm, coordination, and confidence in a fun and supportive environment.
✔Build strength, balance, and coordination
✔ Boost focus, confidence, and social skills
✔ Explore movement through games, music, and activities
Perfect for active preschoolers ready to move, play, and grow!
Move + Thrive + Learn
6 week sessions
Contact us for session schedule
Saturday 930-1015am
Cost $120/session
Custom class or session
Looking for something specific?
Homeschool group
1:1 training session
Small group boot camp
Let's connect!
Our Clients Say
I introduced my son to many other sports, but he didn’t like any of them enough to stay involved. Then we found RWTB Bennington and he has been a student since 2020! I am constantly amazed at his martial arts skills but also his growth in confidence, focus, and determination. Jake and Katie are experts and have a true passion for helping students master martial arts forms, but also gain life lessons. They have created a positive and supportive environment that pushes each student to success.
Jami M - parent