Sonic Chronicles: The Dark Brotherhood
Mystic Ruins (ミスティックルーイン Misutikkurūin?) is the third area that appears in Sonic Chronicles: The Dark Brotherhood. In this game, Mystic Ruins again features as a game area, although the characters visit a more swamp-like section than those seen in Sonic Adventure.
Mystic Ruins is home to many wild animals, such as Queen Wasps, Giant Millipedes and Colossal Worms. Toxic, malodorous gases are emitted into the air by Procurator Shade's inter-dimensional Nocturnus Clan forces, in a bid to clear the area of G.U.N. soldiers. The gas is only passable by Big the Cat, who is recruited into the party in this area.
Along with the crumbling Knuckles Clan ruins as seen in Sonic Adventure, the Mystic Ruins now hosts one of Doctor Robotnik's abandoned bases. Said base has been taken over by the Nocturnus Clan forces, who are using it as a prison to hold Knuckles captive.
- The music for Mystic Ruins is a remix of the music that plays in The Final Fight from Sonic 3D Blast (Sega Genesis version).
- If the player selects certain dialogue options while encountering Shadow, they can have Shadow drop the Eggman device and leave without going through the boss fight against him. This is the only time in the game where a boss fight can be avoided.