For the people that have already played the game, are there any features in the game that can be unlocked by having a certain save file? For example, in Mario Kart Wii, you can unlock Rosalina easily if you have a Mario Galaxy save file or in Metroid Prime 3 where the logos of first-party games you have played are shown on the ship's bumper. Is there such thing in the game? If there is, please don't tell what happens but just mention the game needed to unlock it. Thanks