Luigi's Mansion 2 should simply be titled Luigi's Mansions. It should heavily feature the Poltergust 9000, which can transform from a vacuum into a go kart, jet pack, or enormous mecha. Luigi will have to fight the crazed ghosts of all of his friends, including Peach and Mario, to force them back into their bodies. Putting them back will require completing a CPR minigame. Luigi will also regularly run across an overly friendly ghost dog who will lick his face, sliming him, whenever they meet. Over the game, Luigi will go from fearing the dog to being annoyed, to finally starting to like him and giving him treats. In the end, the dog will be turned into a horrible demon, and Luigi will have to put it down, Ol' Yeller style. The traumatic experience will leave Luigi scarred for life, and instead of being cowardly, all future appearances of Luigi in Mario games will depict him as an amoral killer. In fact, he'll off Bowser for good and become the bad guy for all future Mario games. Instead of kidnapping princesses, his motivation will be to bulldoze the Mushroom Kingdom and build more mansions.