Solid game. Better than the original on PS2 I'd say. Story is basic, but gameplay is fun. Above average challenge, but nothing you couldn't handle with some perseverance (at least on normal). The challenge mode itself turned out to be surprisingly engaging, which is not always the case for me. There's a lot of trial and error in general. Mostly in a good way, but it can get a little frustrating at times. Vehicular combat in particular was the worst part for me. Graphically, it still looks good on an actual PSP, but there are more impressive games for the system. The Havok implementation for ragdoll is quite entertaining. Overall it's a good game and worth playing.