Characters

Caitlan	Complete Rusty's story to unlock Caitlan
Chuck	Get at least one of every card in the game
Earl	Complete Trey's story to unlock Earl
Jalen	Complete Rebecca's story to unlock Jalen
Knight	Complete everyone's story to unlock Knight
Marcus	Complete Flynn's story to unlock Marcus
Monks	Defeat the Monks the 1st time to unlock them
Sera	Complete Luc's story to unlock Sera
Shobu	Win 100 duels in Arcade Mode
Source	Win 50 duels in Arcade Mode
Widow	Defeat Widow her

Card Farming (Save File Exploit)
To make a copy for a card that you already have, all you need is 2 memory cards with an identical save file.

Go to the option setting and change the option for autosave to on.

Do the same thing for the 2nd memory card.

Go to 'arcade mode' and then opt to 'build deck'

Remove all cards from your existing custom deck, or simply disassemble the deck.

Return to the Title Screen and remove the 1st memory card, switch it with the 2nd one, so that the 1st memory card is in slot 2 and the 2nd memory card is in slot 1.

Disassemble all decks for the 2nd memory cards, and then go trading with the 1st memory card.

The 2nd memory card should have twice the number of card after you do the steps above, and transfer all card you want to copy from the 2nd memory card to the 1st memory card - just press START on the 2nd controller, it means that player 1 transfers the card, not trade it.

The 1st memory card should have the card you desired to copy, repeat the process to make a lot of cards. This trick is useful to copy a story-based signature creature card.

Turn off Running out of Cards
To disable losing because of cards running out hold R3 and enter SQUARE, SQUARE, SQUARE.

Instant Win
To make player 1 win hold R3 and enter L1, R1, L1

To make player 2 win hold R3 and enter R1, L1, R1

More Cards
To get more cards hold R3 and enter L1, L1, L1

Unlock Locations
To unlock locations hold R3 and enter CIRCLE, CIRCLE, CIRCLE

Change Shield Numbers
Hold R3 and enter the codes below:

Break one of Player 1's shields	TRIANGLE, SQUARE, X
Break one of Player 2's shields	TRIANGLE, CIRCLE, X
Add one shield for Player 1	X, SQUARE, TRIANGLE
Add one shield for Player 2	X, CIRCLE, TRIANGLE
Add one shield for Player 2	X, CIRCLE, TRIANGLE

PS2 Cheats for Duel Masters

Duel Masters cheat codes

Duel Masters cheats