Duel Masters: Cobalt
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.
Additional locations:
Hold R3 and press Circle(3) at the map screen.
Additional cards:
Hold R3 and press L1(3) at the deck building screen.
Play as Chuck:
Hold R3 and press L1(3) at the deck building screen to unlock Chuck
in arcade mode.
Play as Shobu:
Select versus mode and let player two choose a character. Then, have
player one press R2(2), L1, R2, X.
Cards do not run out in duel:
Hold R3 and press Square(3).
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.
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.