- Master Bob Rivera's Amaa offers his Kampilan Kali System with branches for martial arts, self-defense, survival, and fitness.
- In this video, Master Bob Rivera will focus on the dangers of the edged weapon and show his knife-fighting style through lightning-speed forms, demonstrations, and a challenge.
- Master Bob Rivera will also include a real-life challenge, using ten-inch wooden knives that, if hit, would leave a bruise or worse. The attacker attempted to grab the Knife from Master Bob Rivera each time he was hit.
A message from Master Bob Rivera:
- Do not attempt to disarm an attacker if he can strike, similar to this video.