Duel Masters: Cobalt Additional locations
At the map screen, hold R3 and press Circle(3).
Additional cards
At the deck building screen, hold R3 and press L1(3). You will get four of each card.
Play as Chuck
At the deck building screen, hold R3 and press L1(3) to unlock Chuck in arcade mode.
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 two the win.
Cards do not run out in duel
Hold R3 and press Square(3).
Add shield
Hold R3 and press X, Square, Triangle to add one shield for player one. Hold R3 and press X, Circle, Triangle to add one shield for player two.
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.
Caitlan
Successfully complete Rusty’s story to unlock Caitlan.
Earl
Successfully complete Trey’s story to unlock Earl.
Jalen
Successfully complete Rebecca’s story to unlock Jalen.
Knight
Successfully complete everyone’s story to unlock Knight.
Marcus
Successfully complete Flynn’s story to unlock Marcus.
Monks
Defeat the Monks the first time to unlock them.
Sera
Successfully complete Luc’s story to unlock Sera.
Widow
Defeat Widow at the end of the tournament to unlock her.