Luigi's Mansion was released in Japan on September 14, 2001, marking its 25th anniversary this year. This early GameCube title not only placed Luigi firmly in the spotlight for the first time but also established his enduring image as the "timid hero."
Luigi first appeared in Mario Bros. in 1983, initially distinguished from Mario primarily by his different color scheme. Later titles gradually gave him unique traits, such as higher jumping ability and a taller, slimmer build, but for quite some time, he remained largely in Mario's shadow.
Luigi's Mansion changed this dynamic. The game sees the naturally timid Luigi venture into the mansion alone to rescue his brother, who has been captured by King Boo and other ghosts. He trembles at every little noise yet persists in his search for Mario, a contrast that has become a defining characteristic of the character.
The gameplay also diverges from traditional Mario platformers, shifting the focus to exploration and investigation. Using inventions from Professor E. Gadd, Luigi tracks down and captures ghosts, while the mansion setting, ghostly theme, and cartoonish presentation combine to create a horror style suitable for all ages.
This design gave Nintendo a horror-themed series distinct from traditional Mario games, without straying from its overall lighthearted and vibrant tone. Luigi's cowardly yet comical personality, coupled with his willingness to help friends and family, has carried over into other games and related media, further differentiating him from Mario.
Although the original game is relatively short, its gameplay and artistic style gained market recognition. With cumulative sales exceeding 3.3 million copies, it ranked fifth among GameCube titles and spawned several sequels in the years that followed.