Luigi's Mansion pits you as Luigi, Mario's forgotten brother. Luigi, while checking his mail, found out he won a mansion in a contest. What's weird, is he never entered any contest to begin with. Being the curious person he is, he calls up his brother, Mario, and asks to meet him at the house. Luigi sets forth through a dark and scary jungle to find the house, but sees that Mario is nowhere to be found. Puzzled, Luigi enters the mansion, only to encounter ghosts. He meets up with a scientist, Professor E. Gadd, who explains the situation and hands over the Poltergust 3000. Luigi must now make his way through the mansion's many rooms, sucking up as many ghosts as he can.