One of the better games I have played for the PSP but most of the PSP's games aren't even that good.
The good- Pub games are a nice touch and are addictive at times.Some of the ideas are nice and the graphics and voice acting aren't too bad.
The bad-Missions can be repetitive and not that fun. Many of the modes like zombies, riot, etc are boring and are a letdown. Controls are confusing. Driving is bad.
Overall- This is NOT a good game. Either waste your money and rent it, or go play Gta. Because you will have a much better time with any of the Gta games.