JD: Killzone 2 is a perfect example of a game featuring a final boss that all but breaks the system. The game can be played on normal setting and give most players a solid challenge. There are a couple hairy spots that will require a few attempts to get past, but a little perseverance should do the trick. Then you get to the end of the game and can't help but wonder who cranked up the difficulty to "Why!?" when you weren't paying attention. The road leading into the battle with Radec and the swarms of enemies you must face before the big guy actually appears are insane.