Killzone: Liberation for the Playstion Portable was a great game and the Bosses were a witty challenge to the game's original story line.It was a 10/10 for : graphics,music,voice acting and overall storyline.
Graphics, sound, story, and polish are great. Mission structure, controls, gunplay, and Ai are great as well. The game also has single player campaign, challenges, co op, and competitive multiplayer. No online play though, just local.
The single-player missions are rather linear but the gameplay mechanics create an environment where players won’t be fumbling with controls, but will be able to experience the game for what it presents.