Now on the Xbox Live Marketplace worldwide and PlayStation Store only in Japan is a Chun-nan Adventure Pack for Sonic Unleashed. Four stages with Sonic racing through China and two Werehog levels are included in the 250 Microsoft Point ($3.12) expansion.
Excited? Then you will be happy to hear Sega is working on more DLC. The Japanese press release announcing the level pack says moving forward Sega will periodically distribute additional Sonic Unleashed downloadable content. Looks like the easy thing to do is release more remixed levels, but Sonic is a huge franchise. There is potential for Sega to make other characters already modeled for Sonic Unleashed playable, but looking at the direction of the Sonic series we’ll probably just get more levels.