Just the first Landaeta fight. He dominated the second one. He's a twat, but he's quick and a decent technical boxer with some pop. He also seems to have improved since his first title run. He and his brother Daiki are like the Williams sisters in Japan - the media got oversaturated with them at a very young age, and they have a dickhead dad who the public loves to hate (in Daiki's title fight against Naito, in the corner he actually gave Daiki instructions to elbow him in the eye - a real *******). The difference is that the boys are also assholes, and they became a sensation somewhat because they act SO differently from how a Japanese athlete is supposed to act. Anyway, a ton of their fights are up on Youtube. As Koki gets more disciplined, he's getting much better, and could make noise in a year or two. Daiki I'm not as high on. Both would benefit greatly from ditching their father and getting a real trainer. They make tons of coin in Japan though, so they're being managed just fine.
BTW, I feel like Koki_Kameda has become the "Louie" of this board.... http://www.youtube.com/watch?v=x9xmvhQl2-Q