Ninja Classes Select a class below to learn more about it and to book your class. Each class is $20 per person. Special: Purchase 4 classes at once and get a 5th class for free. Select a class below for schedule and pricing. Lil Ninja Warriors Class: Ages 3-5 Ninja Warrior Class: Ages 6+ Xtreme Ninja Warrior Skills *** Special: 5 Classes for the Price of 4!