Cellar (Luigi's Mansion: Dark Moon)
From the Super Mario Wiki
The Cellar is the final room in the Gloomy Manor, in the game Luigi's Mansion: Dark Moon. It is also home to the Grouchy Possessor, who has inhabited a huge spider; and acts as the Boss of the Gloomy Manor.
The cellar is covered with spiderwebs, and is falling apart with many cracks. There are two suits of armor with torches that strike Luigi if he gets too close (one close to the front and the other in the very back). During the second phase of the fight with the boss, there is also a ceiling fan with a web on it and a stabbing suit of armor that collapses when the spider queen goes back to the back wall for the third phase. On the left side in the front are barrels that give hearts, and on the right is a ramp from the elevator with boxes below it and a coin painting above it.