After arriving at his new mansion, Luigi discovers that the mansion is infested with ghosts! With the help of professor E. Gadd Luigi must brave the terrors of the mansion to save his brother and prevent the return of the evil King Boo.

Timid and fearful Luigi has won a mansion for himself. ... in a contest he never entered. Soon after, he finds himself in a spectral trap commanded by the evil King Boo. Teaming up with new friend Professor E. Gadd and armed with his handy ghost-sucking invention, Luigi must navigate his way through the mansion and fight the ghosts (and his fears) to save his captured brother.—JT Wight