These are the best PSP games (not in any order):
- Syphon Filter: Dark Mirror
- Ratchet and Clank: Size Matters
- Burnout Dominator
- Killzone Liberation
- FIFA 07
- NBA Live 08
- World Snooker Challenge 2007
- X-Men Legends 2
- Justice League: Heroes
- Loco Roco
The Worst game ever on PSP is Darkstalkers Chronicles