Unlockable Destiny Board Traveler Characters:
At the 'Title' screen for Destiny Board Traveler enter the following codes to unlock the corresponding characters.

Unlock Kaiba:
Down, B, Left, Right, Right, R, Up and R, A

Unlock Yami Bakura:
L, Down, Right, Left and B, R, Down, Down, A

Unlock Yami Yugi:
R, Left, B, Right, Up and R, Right, Down, A

Unlock Grandpa:
Press L, Right + B, Right, B, R, Left, Down, A


Unlockable Destiny Board Traveler Worlds:
At the 'Title' screen for Destiny Board Traveler enter the following codes to unlock the corresponding Worlds.

Unlock Domino Pier:
Win one battle as Joey

Unlock Kaiba Land:
Win one battle as Mokuba

Unlock Above Tibet:
Win a single round as Grandpa