This is one of Kentaro's best techniques: A personalized version of a Crescent 540, or Feilong Kick. He's named it the "Rasen Mikazuki Kyaku", or the "Spiral Crescent Moon Kick".

The move starts with a Crescent Kick with one leg, leading to a 540 Kick in midair with the other leg, but then, striking with a midair back kick with the first leg as the finisher. It's a difficult combo, but powerful.