Came across a few more as I was adding more of my PSP games earlier today (So - these are *ALL* PSP games that I'm listing here):
A). Kingdom of Paradise,
B). LUNAR: Silver Star Harmony,
C). PaRappa the Rapper,
D). Rengoku: The Tower of Purgatory,
E). Shin megami Tensei: Persona, and
F). Shin Megami Tensei: Persona 2: Innocent Sin