this is in japan, the guy in the black here is unagi ruken. he's demonstrating his abilities where he doesn't touch his opponents. >> i think this is a stunt choreography for a movie. >> according to unagi, this is all very real. he says he's a 10th degree black belt in five traditional martial arts disciplines. the this guy here gets legitimately hurt. >> he's hurt because he fell on his head. >> there's people who believe in this guy. you can go to his classes and learn his fighting style. he believes he's invincible. he's casually walking around his dojo and people are just falling over. >> he's like the darth vader of karate. >> you'll find there are a lot of martial arts bloggers who are quick to call foul play. all point back to a video from 2006, a minute into the match. unagi is down and instantly dazed by left cross to the nose. he's like, what? somebody touched me. >> i'm bleeding my own blood. >> the force was not with him this day. >> let me try that. >>> it's a bird, it's a plane, it's a -- well, we don't know. but these guys seem