He grew up hard and learned to fight young. Walt became a fighting master at a young age, and later on, he opened a fighting school. One of his first students was Kao's father, Koby, and he harnessed young Koby's talent and turned him into an even greater champion. Although Walt's main base is now Hopalloo Island, where he's focused on teaching young and willing kangaroos the arts of Kaboxing and Kaikido, deep down, he's a citizen of the world. He traveled the whole vast world and met all the famous fighting masters. It's The Frozen Mountains that really stole his heart, as he spent most of his young years there learning spirit walking together with The Oldest One. Ah, those were the days...