Even though Dark Sector doesn't give a great story line, this game has possibly one of the most fun gameplay for the PS3
You start in a black and white prologue chapter level, getting the controls and movement down and the basic gameplay for the game. At first you're thinking this game was a waist of money. But wait, INFECTION TIME!? Suddenly after the storyline kicks off you get infected by a metallic alien named Nemesis. After wobbling about for a good old 20 seconds, Hayden goes badass and owns a couple of guards. Now you have the Glaive, which is kind of like a boomerang with 3 really sharp blades on it. Now the fund really begins as you brutally kill people with the Glaive. Hayden's arm continues to grow more and more metallic as you get new skills, and he also becomes more of a badass. This game is kind of long, but not really. But, it is very fun, making you want to start a new game after beating it right away.