Although it's slightly died off in cultural relevance since the lofty heights of Halo 3 and the above title's Times Square launch-parties provoking mass hysteria back when original developer Bungie were at the helm, Halo was massively replayed on a religious level throughout the noughties. You can't really go far wrong picking any Halo title, but the reason 2 is the focus here is due to the series' first foray into online gaming on consoles. Many of us had been packing friends into increasingly confined spaces for the sake of split-screen exchanges on the first game, but it was with 2 that Bungie's world takeover began. Deploying you in some of the most memorable maps ever created (Blood Gulch anyone?) Halo 2 proved the Xbox had it's very own Counterstrike, and although we would later find that putting a microphone to the voice of the collective would reap almost universally bad things, those first few years were (and remain) completely unmatched in their fully-voiced, team-spirit-fuelled enjoyment. Replay is specifically for: The impeccable Halo multiplayer experience, comprising a great mix of memorable weapons, game modes and tactics that combine to produce one of the most enjoyable online multiplayer experiences of all time.