Boss is a small, orange and white dog of an unknown breed. He has pointy ears and dark eyes. Most notably, he wears a striped sweater adorned with the writing "Dragons", relating to how he was the mascot of the Megasaki Dragons baseball team.
Little is known about Boss' origins other than he was the mascot for the Megasaki Dragons.
Boss's first appearance.
Boss with his friends, Chief, Rex, King, and Duke.
Boss and his friends looking into a bag of garbage.
Boss and his friends having defeated a rival pack.
Boss and his friends eating garbage.
Boss saying he used to be the mascot of a baseball team.
Boss with Rex, Duke, and King.
Boss gossiping with Duke and King.
Boss and Chief.
Boss's name tag.
Boss being motivated by his leader, Chief.
Boss and his friends.
Boss not wanting to acknowledge Chief as a stray due to him hating the concept of masters.
Boss and his friends gazing at Nutmeg.
Boss hearing from Duke that Nutmeg and Felix had mated.
Boss and his friends seeing an airplane crash on Trash Island.
Due to the baseball team being called the Megasaki Dragons, it is unclear why Boss is the team mascot due to being a dog.