Chuck
To unlock Chuck in Arcade Mode at the deck building screen, hold R3 and press L1(3) .

Additional locations
Hold R3 and press Circle(3)at the map screen.

Sera
Complete Luc's story to unlock Sera.

Cards do not run out in duel
Hold R3 and press Square(3).

Widow
Defeat Widow at the end of the tournament to unlock her.

Caitlan
Complete Rusty's story to unlock Caitlan.

Knight
Complete everyone's story to unlock Knight.

Monks
Defeat the Monks the 1st time to unlock them.

Additional cards
At the deck building screen, hold R3 and press L1(3). You will get 4 of each card.

Earl
Complete Trey's story to unlock Earl.

Jalen
Complete Rebecca's story to unlock Jalen.

Remove shield
Hold R3 and press Triangle, Square, X to remove one of player one's shields. Hold R3 and press Triangle, Circle, X to remove one of player two's shields.

Marcus
Complete Flynn's story to unlock Marcus.

Win duel
Hold R3 and press L1, R1, L1 to give player one the win. Hold R3 and press R1, L1, R1 to give player 2 the win.

Add shield
To add one shield for player one,hold R3 and press X, Square, Triangle . Hold R3 and press X, Circle, Triangle to add one shield for player two.

PS2 Cheats for Duel Masters: Cobalt

Duel Masters: Cobalt cheat codes

Duel Masters: Cobalt cheats