This game is almost perfect its only flaws...stupid enemies and a short single player campaign
Gameplay: The controls are almost perfect and the levels are extremly fun. The enemy AI may be stupid but the loads of enemies shooting at you make it up. So far (I only have 5 psp games) this is the only game that does not need any camera adjustments only because you are fixed behind Gabe's back. In other words...this is the best 3rd person shooter on the PSP if not best 3rd person shooter EVER!! You also have a huge variety of weapons my personal favorite...taser XD
Graphics: The cutscene graphics are phenomenal and the gameplay graphics look pretty good too...but the game needs some blood
Sound: The music is pretty good the sound effects are awesome
Value, tilt: This game is definitly worth 40 bucks and would make the best birthday, Christmas and etc present
If you live in a small town then do not expect to play any multiplayer from this game...
UPDATE: 1/27/08------------------------------
It doesn't matter if you live in a small town you can still get multiplayer just choose infrastructure....like I just found out last night
The multiplayer is so awesome but you need to have a really strong signal for best results
So...stop reading this review, get off your chair and get this game!!!