The story begins with Luigi winning a contest for a mansion. Mario goes to check out the mansion and tells Luigi he'll meet him there. As Mario goes to see the mansion, ghosts and King Boo ambush him and seal him inside a picture. After Mario doesn't come back, Luigi goes to check the mansion. He goes inside the mansion to see a hazy orange light with what looks like a key. It rises up and humorously bumps into the chandelier, dropping the key. It then escapes to a room up the stairs. Luigi picks up the key and unlocks the room, only to be ambushed by an orange ghost called a golden ghost which was the orange light he saw earlier. Suddenly, the ghost starts getting sucked in by something and Luigi turns to see Professor E. Gadd. The ghost drags him around the room and punches him to get away. They go back to his lab where the professor gives Luigi the Poltergust 3000 and tells him about what happened to Mario. After Luigi goes deeper into the mansion, he comes across a storage room where he presses a button that releases all of the Boos and King Boo himself. But King Boo sees Luigi carrying the Poltergust 3000 and he and all the other Boos run away. King Boo stays in a secret room for the rest of the game, up until the final boss fight, where he too was captured and turned into a painting.
Release Date : September 14, 2001
Release Date : March 20, 2013
Release Date : Oct 12, 2018
2019 - No Official Release Date Set