Unlock Title, Duel Disk, and Clothes From Nightmare Troubadour!
You must go into Wireless Connection on both Spirit Caller and Nightmare Troubadour. Then in Nightmare Troubadour make a room and enter the room with Spirit Caller. It should save the game. Then exit the wireless connection on both games. When you get back to your Dorm Room in Spirit Caller go into your closet and you should have acquired: Stuffy Collared Shirt, Cheap Duel Disk.