Conquer Ninja Gyms are Ninja Warrior training and obstacle course facilities located in Arizona, North Dakota, Minnesota, and Texas. These are the PREMIER facilities in these regions dedicated to individuals seeking ninja warrior and obstacle adventure race training! American Ninja Warrior Training, Kids Classes, Open Gyms, Birthday Parties, Team Training. Our gyms are specifically designed for kids (ages 5 and up) and adults. We have full size and smaller-scale obstacles.