An excellent game for PSP, I can't put it down. Especially for only $15.

User Rating: 8.7 | Killzone: Liberation PSP
This is one of the best games for the PSP. Thankfully the developers didn't waste their time trying to figure out how to make another clunky FPS for the PSP. The format of 3rd person shooter works very well and the graphics and sound for the game are excellent. The control scheme is good and works well, the target lock system can get frustrating at times and doesn't always lock onto the intended target. The multiplayer aspect to the game is fantastic, finally a game that incorporates cooperative missions, something that most tactical shooters really need. Lots of good minigames to get at the locked content and the story progresses very well. Overall an excellent game. I look forward to playing it on the big screen with the new PSP in September 2007.