Mummy-like ghosts, that are actually Greenies in disguise.They are one of the main ghosts in the game. Boos, round, white ghosts with sharp teeth.They can get sucked up with a power suck. Creepers, purple jelliton-like ghosts with infinity HP.They will revive Luigi if he has a Gold Bone. Hiders, skinny, blue ghosts with 15 HP.Gobbers, large, fat, yellow ghosts with 100 HP.Poltergeists, orange ghosts with a pink brain that have 50 HP.Haunted Armor that will attack Luigi with their swords if he gets too close.Unlike the game's predecessor, it not only blocks doors, but also blocks stairways. Gates that are similar to the vines that blocked doorways in Luigi's Mansion.Slammers are buff, red ghosts with 30 HP.They are the basic ghost, and they have a gold form called a Gold Greenie that has 20 HP, and drops large amounts of money, similar to the Speedy Spirit. ScareScraper (Mainly a multiplayer mode, but solo play is possible).

It is also a lot more puzzle-oriented than the first game. There are five mansions in the game. Simply shining the flashlight on ghosts no longer stuns them, so The player must activate a strobe-like function. There is now an upgrade to the Poltergust 3000, the Poltergust 5000.