ソニックチーム
The next several titles were developed by Naka and Yasuhara in America at Sega Technical Institute, while Ohshima worked on "Sonic CD" in Japan. In late 1994, Naka returned to Japan to become the head of CS3, later renamed R&amp;D #8. During this time, the division was branded with the Sonic Team name but also developed games that do not feature Sonic, such as "Nights into Dreams" (1996) and "Burning Rangers" (1998). Following the release of "Sonic Adventure" in 1998, some Sonic Team staff moved to the United States to form Sonic Team USA and develop "Sonic Adventure 2" (2001). With Sega's diversification of its studios, R&amp;D #8 became Sonic Team in 2000, with Naka as CEO and Sonic Team USA as its subsidiary. Sega's financial troubles led to several major structural changes in the early 2000s, the United Game Artists studio was absorbed by Sonic Team in 2003, and Sonic Team USA became Sega Studios USA in 2004. After Sammy Corporation purchased Sega in 2005, Sonic Team was restructured to become Sega's GE1 research and development department, and later, CS2. As of 2019, Sonic Team is a team within CS2.