Kimo's Fierce Fighting NO-Holds Barred: World renowned UFC fighter Kimo Leopoldo presents his fierce brand of hand-to-hand combat with his sensational new “Fierce Fighting” self-defense video training series. Developed from hundreds of street fighting encounters and no holds barred cage fights, Kimo has refined and perfected a “Fierce Fighting” system so effective that anyone who learns his lethal techniques is almost certain to win any stand-up or ground fighting encounter.