In 2002, Nintendo released Super Mario Sunshine for the GameCube. The game was set on the tropical Isle Delfino, where Mario and Princess Peach are planning to take a vacation, whilst accompanied by her steward Toadsworth and five unnamed Toads on the Toad Express.
Luigi is notably absent, but considering the release date and the to references to Professor Elvin Gadd, we can assume that Luigi is comfortably relaxing at his new and now un-haunted mansion.
Of course the vacation is halted whilst Mario must deal with Shadow Mario (Bowser Jr.) with the assistant of Professor Gadd’s artificial intelligence and multipurpose water pack F.L.U.D.D. (Flash Liquidiser Ultra Dousing Device), whilst collecting all 120 Shine Sprites.
Of course Mario is successful and in the end gets to enjoy his much deserved vacation.
Simple enough really.
However, perhaps we should look more towards the political state of the tropical Isle Delfino, as something is rather amiss.