Ceremonial Chamber

The Ceremonial Chamber is a room in the basement of Treacherous Mansion in Luigi's Mansion: Dark Moon. Accessible via the Guard Tunnel and Haunted Catacombs, this room is one of the main destinations in the first mission of the mansion.

The main part of this room is a circular chamber with numerous torches and suits of armour inside, one of which is initially sitting on a throne. Some of these suits of armour are inhabited by Strong Greenies and attack Luigi after he lights the torches. Examining the throne brings Luigi to the Haunted Catacombs.

There's also a corridor to the right with a flame, a giant spider web and another suit of armour. The door here leads to the Guard Tunnel.

This room can also be seen into via the hole in the Guard Tunnels north wall.

History
During E-1: Front-Door Key, Luigi chases the Polterpup through this room. However, the Polterpup dives through the floor to reach the Haunted Catacombs, meaning he has to light up the torches to reveal the throne. After this, Luigi had to defeat the suits of armour before going to the next area.

From E-2 to E-5, this room is inaccessible like the rest of the Treacherous Mansion basement.

In E-Bonus: Terrifying Invasion, the Ceremonial Chamber can be entered again. However, there is nothing of interest in the room any more.