Trivia: Luigi's Mansion
- Preview Piggybacking: The game included a trailer for the first Pikmin game, accessed through the options screen.
- What Could Have Been: The game was initially much harder. As seen in the beta trailer, your Poltergust had an exhaust meter which, if overheated, could blow up and cost you some life. There was also a ghost that could sneak up on Luigi and scare the snot of him, also costing him life. Your map that's included on your Game Boy Horror originally didn't have the feature where you could find the right room to fit the right key in.
- Also, rather than being split up into different areas, the entire mansion would be just one huge area. Because of this, bosses like Bogmire and Chauncey would have been absent.
- Luigi's Mansion was also supposedly planned to be in stereoscopic 3D using an add-on, but when the production of said add-on turned out to be more expensive than the system itself, it was canned. In hindsight, it makes sense that when Luigi's Mansion 2 was announced, it was on the Nintendo 3DS, which has 3D without the need for an add-on.