about 20-30, as w3ith Trademark mines mostly a portable ps1
15 on my computer and 21 on my PSP.
Hmm, how about that I have more games on my PSP than I have on my computer
I've got 19 on my computer right now, but I've deleted countless other spoon games. I used to own Battlefront II, and I think that's the only PSP game I ever actually had.
two
Hatsune Miku: Project DiVA
Hatsune Miku: Project DiVA 2nd
psp, nothing.
pc, almost every pc game.
Only 2, but they're PSone classics. I don't use my PSP for gaming much anymore. I use it to watch anime when I don't feel like watching it on the computer lol.
35+ legitimate backups and about 10 that I haven't bought the UMD of yet.
IDK 10-15 maybe?
For the game I bought (with the console) as well as the various UMDs I borrowed from my friends, I've never actually finished (or even a quarter of the way through) any of them.
PSP Is dead
I want PSP2 NOW 
.