Accessing Certain Outfits
You can purchase figurines of Miku, and you might notice that they wear costumes you can't earn by playing the rhythm game. If you want one of those costumes, just buy the figurine and set it in your room, then save the room configuration. Now you can head to the store and you will find the costume on sale, provided it's not one you must earn through the rhythm game.
Super Hard Difficulty
Earn an S rank on the Hard difficulty setting to unlock a Super Hard setting on the following six songs:
Romeo and Cinderella
ARIFURETA SEKAI SEIFUKU
1 2 Fanclub
Make sure that you play the game on and around the holidays. Sometimes, a visitor will arrive with a medium-sized item, such as a Christmas tree, which you can place in your room. On some holidays, you'll get to enjoy character interactions. Visit your partner on Valentine's Day, for instance, to receive a box of chocolates.