United Game Artists
AM Annex was a first-party video game development studio for Sega of Japan. In 2000, Sega-AM9 (as they were later called) became United Game Artists or (UGA) when Sega reorganized its studios to become second-party developer. They released three games for the Sega Dreamcast before they were merged with Sonic Team Japan in 2003. They are more well known for their work on Space Channel 5, Rez and the Sonic Riders series.