Reach lvl 18 in Story Mode or Clear Latin in Ballroom Mode.
Beads Chocker
Have Kid as your partner for the Final Competition.
Bonus pictures
Reach the end of the game without becoming anyone's partner. Tony will dance with you at the ball. Win the dance and Tony will become human and say that he must return to his kingdom. He will ask you to accompany him.
Turn Tony down to unlock the "Princess" picture.
Accept Tony's offer to unlock the "Tony" picture.
Bunny Ear Hat
Reach lvl 20 in Story Mode (Must have no partner) or Clear Standard in Ballroom Mode.
Diamond Ring
Win the Final Competition and Accept the Proposal.
Emerald Necklace
Have Klaus as your partner for the Final Competition.
Fashionable Hairstick
Have Hayato as your partner for the Final Competition.
Kiefer Bergmann
Successfully complete the game to unlock Kiefer Bergmann, the sixth prince.
Lily Hair Adornment
Befriend with Randy and get it from him after practice (must have no partner)
Rose Acessory
Have Cesar as your partner for the Final Competition.
Star Pendant
Have Kiss as your partner for the Final Competition.
The 6th Prince
You can unlock the 6th Prince, Kiefer Bergmann (Kiss Maxgaia in the JP version) after you beat the game once.
The 6th Prince
You can unlock the 6th Prince, Kiss after you beat the game once.