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