You must beat any "Structure duelist" with ALL structure decks.
The structure decks are unlocked one at a time randomly.
I think u just have to keep battling in WC mode to unlock them all.
To advance in the Story Mode, you must solve at least 3 Duel Puzzles, and win using at least 3 Structure Decks in Structure Duels.
There are various different ways to unlock packs. Try beating everyone you come across 3 times. That should unlock a lot. Some can only be unlocked through story mode. Look on gamefaqs.com. That should tell you more.
yes
25 December 2010
None
yes u can
You can't unlock it.
it allready did
get the card pack force of the breaker
Yugioh battle nations
70902743.
there is no way to unlock him.