Duel Masters: Cobalt Codes -

Win duel:
Hold and press , , to give player one the win. Hold and press , , to give player two the win.

Additional locations:
Hold and press (x3) at the map screen.

Additional cards:
Hold and press (x3) at the deck building screen. You will get four of each card.

Unlock Chuck:
Hold and press (x3) at the deck building screen to unlock Chuck in arcade mode.

Cards do not run out in duel:
Hold and press (x3).

Remove shield:
Hold and press , , to remove one of player one's shields. Hold and press , , to remove one of player two's shields.

Add shield:
Hold and press , , to add one shield for player one. Hold and press , , to add one shield for player two.