In exhibtion mode, beat the CPU at hard difficulty level a few times (the number is randomly set between 1 and 10). God Difficulty Level must be unlocked one by one for each character, in singles and doubles.
SP Costumes and accessories:
In exhibition mode, beat the CPU at God difficulty level. SP items must be unlocked one by one for each character.
Unlockable Characters:
Unlock the following characters by performing the corresponding tasks:
Unlock Gloria - In story mode, after the second ending, go back to the volcano site and select to play as Suzuki before you enter the last room. Gloria will be inside.
Unlock Norma - In story mode, after the first ending, go to the volcano site and beat every player until the final door. Play as Emi to enter, then beat Norma.
Unlock Suzuki - In story mode, once Schneider joined the party, come back to his stage then talk to Suzuki. He will challenge you, so beat him to unlock him.
Unlock Yakkun - In story mode, once Brad joined the party, come back to his stage and talk to Yakkun. He will challenge you, so beat him to unlock him.
