Final Fantasy Tactics - War Lions - Platform: Sony PSP

Balthier from FFXII:
--------------------
1. When you reach Chapter 4, head over to The Mining Town of Gollund.
2. Check the "Rash of Thefts" rumor from the tavern.
3. Drop by The Merchant City of Dorter's tavern and read the 
   "A Call for Guards" rumor.
4. Leave town, and you'll automatically enter a battle.
5. Win with the help of Balthier, and he'll join the party.

Balthier:
---------
During Chapter 4, go to The Mining Town of Gollund. At the tavern, 
read the "Rash of Thefts" rumor. Go to the Merchant City of Dorter. 
At the tavern, read the "A Call for Guards" rumor. When you leave 
the city a battle will start. Win the battle with Balthier's help 
and he will join you.