Luigi's Mansion 3 review: You'll never want to leave this haunted hotel - Polygon
Mario And Luigi Climbing The Hotel Luigi's Mansion 3 - YouTube
In the Luigi's Mansion 3 reveal trailer, there are pizza boxes that say "since 1983", which is the year Mario Bros. released and Luigi's first appearance. : r/GamingDetails
Mario's Mansion 3! by ShineSpriteGamer on DeviantArt