Unlock Parn:
Bring him Gold Paint.

Unlock Pau:
Bring him a carrot.

Unlock Gordon:
Bring him Holy Water.

Unlock Ferdinand:
Give him a Roasted Chestnut

Unlock Olivie:
Get 1st Place in Finny Frenzy.

Unlock Adel:
Give her a Sturdy Cloth, Hunk of Copper and Thick Hide.

Unlock Claire:
Bring her a photo of the Lafrescia Stem.

Unlock Corinne:
Play 'Hide And Seek' with her and win twice.

Unlock Doctor Dell:
In Balance Valley have him heal the sick girl.

Unlock Donny:
Buy an Indestructible and a Dark Coin then give them to Donny

Unlock Sheriff Blinkhorn:
Run to the boat and back in less than 2 minutes after talking to him.

Unlock Fabio:
In the Lake catch a fish 60cm or bigger.

Unlock Gerald:
Level up the gun he gives you twice.

Unlock Milane:
Level up the weapon she gives you twice.

Unlock Mayor:
Enter the combo to the safe - 1221.

Unlock Mina:
Complete 10 rounds of Spheda after talking to her.

Unlock Polly:
Keep bringing the bread to the places directed.

Unlock Priest Bruno:
Put out ALL of the candles in the church.

Unlock Rosa:
Type 'Let's go together' when talking to her.

Unlock Rufio:
Give him a photo of the moon.

Unlock Stewart:
Give him the money for the auction

Unlock Spheda Practice in Extras menu:
When you turn on the game beat Dark Element.

Unlock the Zelmite Mines dungeon (Chapter 8):
Beat the game on one file and the dungeon will be unlocked on the beaten file.

Unlock Monica's Costume:
When you turn on the game defeat Dark Element. Then when you start a new file you will be able to choose Monica's outfit.