ONE PIECE: GRAND ADVENTURE UNLOCKABLES
Buggy
Get the "Top Pirate of the Island" rank to unlock Buggy as a captain in Grand Adventure mode.
Chaser
Reach level 15 with him in Chaser's adventure, then win a battle using him.
Chaser (Smoker)
Get the "Top Pirate of the Grand Line" rank to unlock Chaser (Smoker) as a captain in Grand Adventure mode.
Crocodile
Get the "Top Pirate of the Continent" rank to unlock Crocodile as a captain in Grand Adventure mode.
Eneru
In Adventure mode as Crocodile, get Eneru as an ally in the Jaya area. Then, win a battle using him.
Kuina
In Adventure mode as Chaser, recruit Kuina in the ship graveyard. Then, defeat Zolo using her in Alabasta.
Mihawk
In Adventure mode as Chaser (Smoker), get Mihawk as an ally. Then, win a battle using him.
Mr. 2 Bon Clay
In Adventure mode as Crocodile, get Mr. 2 Bon Clay as an ally. Then, win a battle using him
Nico Robin
In Adventure mode as Luffy, get Nico Robin an ally.
Ohm
In Adventure mode as Crocodile, get Ohm as an ally in the Jaya area. Then, win a battle using him
Shanks
In Adventure mode as Buggy, get Shanks as an ally. Then, win a battle using him.
Trace (Ace)
In Adventure mode as Buggy, recruit Trace in Drum Island. Then, win a battle using him.
Ussop
Defeat the final boss in Adventure mode as Luffy, Buggy, Crocodile, and Chaser in any order.
Zeff
In Adventure mode as Chaser, get Zeff to level 15 and use him once in battle.
Support characters in Grand Battle mode
Use a support character in three battles in Adventure mode. They can now be used by any character in Grand Battle mode.
Sound test
Get all of the cards by playing Arena mode in Grand Battle mode to unlock the "Sound Test" option.