Mallet Island
From Devil May Cry Wiki
Mallet island is the name of the island that Mundus rule after being defeated by Sparda, not much history of this place is given, but Mundus planned to create and open the portal between human and demon world and drive the world back to its chaos state.
Mallet island consist of a large castle-like building and is guarded by various demons in the top level consist of Mundus statue which he gives orders. Despite being a demon constructed building, the top floor, where Mundus resides appears to be clean and serene. Early sketches of the castle shows that there are various rooms and chambers such as: Back Hall, Prison Chamber, and a "guest" room.
