- Main article: Ultimate Sonic
Blue Ridge is Sonic's first stage. It is an alpine theme stage (To be exact more of a cross between hill and winter theme zone). The music for this stage is mix of the Mega Drive/Genesis version of Diamond Dust Zone.
On December 17–28, it will snow in Central City with musical Christmas tree's and snowmen that will wish the player Merry Christmas and tell them of the Christmas holiday at Blue Ridge. During Christmas time, A Christmas version of Blue Ridge is playable, Instead of day time, the sky will be night. The fir tree's have colored lights and stars above them and the railing resembles candy cane. The music of Blue Ridge will still be Diamond Dust only the Sega Saturn version. Throughout the stage Christmas presents will be dropped by a flying jester wearing red, these which gifts function like random items and power-ups for the player.