Bruno is a Sensei who has his own dojo in Puffletopia where he teaches ninja puffles. He also is a close friend of Cadence. If there were such a thing, he would be an expert at Dance Jitsu. Legend says that Klutzy was once his apprentice. Due to Klutzy's amazing abilities most people think it is true, but it has not yet been proven. They also say he was one of the Three Masters, he just didn't have an element. This rumor has not been proved true and most people don't beleive it. There are alot more myths about Bruno, and some penguins who have never met him in person thinks he is just a myth.
He was at one point trained by Sensei. He has also made his own elemtent, the element of Earth. He has made only one Card-Jitsu card with that element, and it is one of Klutzy in a ninja suit.