The original Luigi's mansion is one of my favorite games of all time. I know the game by heart and can run through it really quick. However I never played the 3ds port, and it adds some nice bonuses. Boss replays, achievements, and co-op. These are nice additions but the same core game at face value with good texture improvements, but at a lower resolution because 3DS. If the game came out just a bit later and hit the switch it would have been the definitive version. But that being said, it's still the original Luigi's mansion, a game I'll always love.