PSP RPGs: Which are the ones i should own?

[KillerMan]

ishiki said:

Legend of Heroe's Trails in the Sky!
AKA TiTS

is my favorite. It's story is kind of predictable and the concept of the story isn't really the most epic (Junior Bracers!), but the dialogue is really great, and the characters I really loved. The graphics, are poor. The battle system is fun and grid based, though it's mostly really really easy, so it takes the fun out of what would have been a lot more strategic if it was difficult... though this isn't the only jrpg to have this issue.

Can't recommend this enough. Amazing game. Only downside is that the ending is cliffhanger and getting the second installment is anything but sure because  PSP is pretty much dead software wise in the west. I am still hoping for Steam release though as XSEED has started to publish games in Steam and TitS is originally PC game.