There are a total of four regions available in テンドーブレード.
Scarlet Devil Mansion
The Scarlet Devil Mansion area consists of the mansion, the library, and the basement.
Bamboo Forest of Wandering
The Bamboo Forest of Wandering area consists of the Bamboo Forest, the Riverside, the Deeper Bamboo Forest, the Rabbit's Inn, and Eientei.
Youkai Mountain
The Youkai Mountain area consists of the Youkai Mountain, the Kappa's Freemarket, Moriya Shrine, and the Deeper Youkai Mountain.
Fantastic Wind Hole
The Fantastic Wind Hole area consists of the Fantastic Wind Hole, the Palace of Earth Spirits, the Den of Evil, and the Nuclear Fusion Reactor Core.