Cheer [15/21]
This underground martial art is practiced by the most hardcore of American cheerleading squads. It’s an almost merciless discipline to learn: initiates start tough, and are ruthlessly taught to push their bodies to the maximum. Those who stick it out become tricky and unpredictable opponents in a fight; those who don’t still keep the squad’s secrets.
Factoid: 85% of American corporate ninja have at least basic proficiency in Cheer, and 42% of them list Cheer as their primary martial art.