Doctor Robotnik's Fortress

Sitting on the top of a mountain, and sporting an oversized statue of Robotnik, Dr. Robotnik's lair is his central base for his plots to take over Mobius and destroy Sonic himself. Damaged and destroyed on many occasions, the base has little defenses except for that of Scratch, Grounder, and Coconuts. Although it holds a massive prison block, the base is more of a home to Robotnik than an actual military base. When not having the SSSSS and Coconuts on a mission, they are usually the ones cleaning the base. The lair is also Sonic's usual first and last stop in preventing Robotnik's plans of taking over Mobius.