I'm going to be controversial and say Crystal Chronicles!
*is shot, has phoenix down equipped, comes back to life*
It's a great game, with awesome multiplayer co-op too. I kind of forget the story, and to be fair it is kind of forgettable, since I haven't started a new game in years, spending all my time running around with my party of awesomeness. Great design, awesome music, superb boss battles blah blah blah. I'm probably a little biased, since my (now ex) GF and I spent hours playing it together, good times, good times. Maybe I'm also a little crazy but I actually seem to care about all my party members. I even went so far as to print out a document where I could keep track of equipment, items, artefacts ect. that all my party members had too.
Actually, the only other ones I've played are the GBA Dawn of Souls remakes of 1 and 2. I finished 1, it was quite good, 2 I started, then accidentally wandered too far without saving and ran into a monster that slaughtered me and I haven't gone back yet.
Happiness is a time a place. A memory a chemical imbalance or shift.