Marine HQ stage
Enter training mode and get your bomb catching over 51.
Play as Ace
Unlock Bon Clay and the third costumes for Luffy, Zorro, Nami, Usopp, Sanji, Chopper and Robin (by completing training mode with them), then successfully complete Event Battle as Smoker under the hard difficulty setting.
Play as Bon Clay
Unlock Hina, then successfully complete Event Battle as Sanji under the hard difficulty setting.
Play as Crocodile
Successfully complete Event Battle as Robin.
Play as Enel
Unlock Smoker, Crocodile, Wiper, and Orm, then successfully complete Event Battle as Luffy or Wiper.
Play as Hina
Unlock Enel, then successfully complete Event Battle as Usopp under the hard difficulty setting.
Play as Orm
Successfully complete Event Battle as Chopper.
Play as Shanks
Unlock Ace, complete Event Battle under the hard difficulty setting as Luffy, Zorro, Nami, Usopp, Sanji, Chopper and Robin, and unlock the Windmill Village and Marine HQ stages. Then, successfully complete Event Battle as Luffy under the hard difficulty setting.
Play as Smoker
Successfully complete Event Battle as Zoro.
Play as Wiper
Successfully complete Event Battle as Luffy.
Super Hard difficulty
Successfully clear all moves for all sixteen characters in training mode.
Windmill Village stage
Unlock Enel, then collect all 48 cards in Event Battle.