1. Killzone 2
Killzone 2 is the third chapter in the series, following the original PS2 shooter and Killzone: Liberation, a third-person action title on the PSP. While players don't need to have played either one of those games to understand what's going on in Killzone 2, fans of the franchise will see connections between the three games with familiar characters popping up and events being referenced.
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2. Street Fighter IV

Street Fighter has traditionally been a game which focuse on one-on-one combat on a 2D plane. Street Fighter IV lets you select a character and square off against another warrior in the ring. Each character has a variety of normal attacks and Special Moves to take advantage of, but the actual gameplay boils down to a balance between raw physical skill and the mind games that play out between players.
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3. Madworld
Mad World's black and white visual style has clearly been inspired by Frank Miller's Sin City. MadWorld, a twisted, warped and razor witted gore fest cum beat-em-up that is guaranteed to send the world’s po-faced into a dribbling, head spinning frenzy the minute they lay eyes on Jack, MadWorld’s Numero Uno, as he drops bad guys ass first on to a rusty spike, before moving on to the next, lamppost in hand ready to ventilate cranium.
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4. Halo Wars
Halo Wars' believeable story is presented through some great cutscenes, with high-quality cinematics and decent voice acting. Combined with authentic-looking units and environments, it goes a long way toward making Halo Wars look and feel like part of the series. The storyline is slightly confusing at first but eventually pieces together to make a satisfying ending,
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5. Resident Evil 5
Resident Evil 5 is all about evolution. Capcom has gone out on a limb with the latest numbered sequel in its long-running survival horror franchise, and although one of your goals as a player is to survive the horrors around you, this entry in the series is a radical departure from the genre Capcom helped create near Raccoon City more than a decade ago.