Anteroom

The Anteroom is the second room Luigi explores in Luigi's Mansion. It is located in the first area. The Anteroom resembles a short hallway and is where Luigi first encounters Purple Punchers. In the blackout, there is a single Purple Puncher and four Gold Ghosts. In the PAL Hidden Mansion, there are three Purple Punchers and a single Blue Twirler.

When Luigi enters the Anteroom for the first time, the doors become blocked with force fields, causing Luigi to be trapped inside of the room. He is then attacked by several Gold Ghosts. After sucking up them, Luigi is then attacked by a few Purple Punchers. When Luigi captures all of the ghosts, the force fields disappear and Luigi is able to proceed into the Wardrobe Room.

Ghosts in The Anteroom

 * Four Gold Ghosts (10 HP each)
 * Two Purple Punchers (20 HP each)

Ghosts in The Anteroom in the PAL Hidden Mansion

 * Three Purple Punchers (20 HP each)
 * One Blue Twirler (30 HP)

Ghosts in The Anteroom during the Blackout

 * One Purple Puncher (20 HP each)
 * Four Gold Ghosts (10 HP each)

Trivia

 * There are actually less ghosts in the Anteroom during the blackout.