Once you are done with the last event of the story mode, go to the Password Machien and type in 44324104 (no duelest Points are needed). Now you can rerun the credit sequence and play the matchemup mini-game whenever you wish (as long as Dorthy or Sadie is at the card counter).

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.

This glitch will put any amount of packs as 150 DP. Here's how to do it:

1. Go into whatever set, and checkmark 1 pack.

2. Select the set you want to buy all, or some of, and press L. Or checkmark them manually.

3. Exit out of that set, and highlight another set (Do NOT go into the other set) Now press R.

4. After doing all 3 above, Press X.

If done correctly, the packs you wanted, plus the one you checkmarked earlier, are only worth 150 DP altogether. This can be done with any pack.

Note: The set must not be empty in order for this to work.