Sky Render on 01 June 2008
Unfortunately, about all I can recommend are various PS1 ports, as that's what most of my PSP library consists of... That said, Valkyrie Profile and Tales of Eternia are worthy additions if you missed their PS1 releases, given their extreme rarity on PS1 and easy availability on PSP. Though the latter is only available in Europe, so you'd have to import (and not do anything else; I love region-free handhelds).
Sky Render - Sanity is for the weak.
