PSP, top games?

I got a Darth Vader PSP and I like it a lot. I have NBA 08 for it, Star Wars, and Medal of Honor Heroes 2. Any other games any would like to recommend to me?

Loco Roco, i loved it but you might want to try a demo first if you can (best buy or somewhere might still have it set up)

Tekken is an absolute must have, irregardless. The GTA games are definitely worth a play through as well. Hotshots Golf is also great... and that's pretty much it. The PSP selection is noticeably thin on good games... since most of them are half-assed ports.

Twisted Metal: Head On. Awesome game. An improved version of Twisted Metal 2.

Worms rule. I played it, pretty frustrating at first, but very damn violently enjoyable.

EDIT: Jamespeso, which Star Wars game do you have on PSP, Lethal Alliance?