Sonic Colors Ultimate has rolled out to (almost) all territories, and most physical editions include some goodies. American and European fans received a Baby Sonic keychain, a cross promotion for the Sonic movie. Japanese fans, meanwhile, received an awesome 30th Anniversary Pack which evokes the 10th Birthday Pack as both contain a coin, CD and book.
In the case of the 30th Anniversary, SEGA included a classy gold coin, a CD of unique tracks including music from cutscenes, YouTube animations and past album-exclusive remixes. The book, meanwhile, is a cool look back on a year and a half of art created for the Japanese Sonic Twitter account. The art includes full commentary from the artists, sketches and easter eggs.
Overall, an awesome package and you can see it for yourself in the above video!