Norio Hanzawa (半沢紀夫), also known as "NON", is a Japanese video game composer. He was employed at Konami until the emergence of Treasure Co, Ltd. in 1992, at which he has been an in-house composer ever since. Hanzawa is best known for his high-energy soundtracks to the Genesis games Gunstar Heroes and Alien Soldier, and for his contributions to the Dynamite Headdy soundtrack. He also wrote music for many other popular titles, such as Guardian Heroes, Mischief Makers, Castlevania: The Adventure and Wario World, amongst others.