Mario & Sonic at the Olympic Winter Games :: Unlockables
After completing Festival Mode, scroll through the options on the main screen using left and right on your control pad. Move the cursor between the Music Shop and Sport Shop to select the Secret Shop! In the Secret Shop you can buy the Music Player. However, it's appearance is completely random. So, if you don't see it right away, go play a few more games and check again!
In all the shops, you can watch the characteres interact with each other. Brothers and close friends will have conversation while sworn enemies will insult each other.