1. In terms of map setting, Louis Haunted House 2 and 3 are set in hotels and shopping malls respectively, and the map design, distribution and layout are different.
2. In terms of game content, the scenes, tasks and gameplay of Louis Haunted House 2 and 3 are also different.
3. In terms of story lines, the story lines and mission objectives of Luigi Haunted House 2 and Luigi Haunted House 3 are also different. For example, the theme of Luigi Haunted House 2 is to explore strange hotels, while the theme of Luigi Haunted House 3 is to explore grotesque shopping centers.