The final boss of Karate Blazers is a recolor of the game's first boss. He has spiky, reddish-brown hair and sharp, fang-like teeth, as well as an eyepatch covering his left eye as shown at the beginning of the game. (However, as with the first boss, the eyepatch changes eyes during the game as his sprite is flipped.) The final boss wears dark red pants and arm bands.
The final boss is apparently the one responsible for murdering the martial arts master, kidnapping his Daughter, and stealing the secret scrolls. He is also shown on the Game Over screen.