"To protect the Dark Moon piece within him, he possessed the huge clock face at the top of the tower and called on hoards of ghosts to help him out! A battle to remember!" —E. Gadd's Ghost Container, Luigi's Mansion: Dark Moon.
Like all the other Possessors, this ghost appears as a white, horned specter, the only difference being that, unlike all the others, this one has only three horns. No more, no less.
In this mission, after Luigi gets shot to the top of the Belfry, the Possessor will frighten Luigi, and possess the giant clock face. As the clock hands spin around, the numbers will seemingly get possessed one after another. When the battle begins, the number on the clock will be absent, and the clock hands, now seemingly burning, will twitch a bit before swinging around the clock in an attempt to hit Luigi. After stopping at exactly an hour on the clock, the hands will cool, and several ghosts will appear from the hour the small hand landed on. Luigi has one "hour" to defeat the ghosts or enemies. If he does not defeat the enemies when the large hand reaches 12:00, the hands will swing around, and Luigi will have to try that hour again. If he does defeat the enemies in time, the hands will swing around to the next hour, and the process will repeat until Luigi beats every fourth hour. Luigi can move the hands himself to give him more time, or bring him closer to demise. After he does defeat the fourth, eighth, and twelfth hours, the Possessor will appear and Luigi can take one of his three layers off, after the Possessor charges at Luigi four times.
The hour's respective ghosts are recorded here:
|Phase 1 (Hours 1-4)||Only makes Luigi fight the ghosts.|
|After 4:00||Luigi gets a shot at the Overset Possessor. Note that the two parts of the clock face will spin during the time the Possesser is out.|
|Phase 2 (Hours 5-8)||The clock face will be covered in sand.|
|7:00||Three Greenies carrying hammers and metal shields.|
|8:00||Three Mummy Greenies.|
|After 8:00||Luigi gets another shot at the Overset Possessor.|
|Phase 3 (Hours 9-12)||The clock hands will be burning, meaning Luigi cannot touch them. They can still be moved though.|
|11:00||Eleven Robotic Bombs.|
|12:00||One Greenie, one Slammer, five Beetles, one Sneaker, one Greenie equipped with a hammer and shield, and two Robotic Bombs.|
|After 12:00||Luigi gets to defeat the Overset Possessor and collect the fourth Dark Moon piece.|