Please note this is the NTSC version of the game which is compatible with PAL systems Any future DLC may require a US Nintendo accountAs if New Orleans hadn\'t had enough problems lately now it\'s got to deal with a zombie invasion as well Set entirely in the Deep South of the US your team of four players must once again fight for survival against a never-ending wave of mutant monstersThe dead walk and they\'re feeling kind of hungryFireproof zombies are just one of the new horrorsNew melee weapons make combat even more intenseFalling off a bridge is the least of your concernsCo-operation is the name of this game as you struggle to reach a series of safe houses and eventual rescue while all the time being assaulted by hundreds of zombies and other creatures The five new campaigns (one more than the original) feature a more detailed story and finally explain how the outbreak occurredIf all you\'re interested in is the action though then there are new melee weapons - including a chainsaw - and lots of new firearms With new mutant types as well this is the perfect mix of survival horror and all out first person shooter action Fearing for your life has never been so much fun Next generation co-op action gaming from the makers of Half-Life Portal Team Fortress and Counter-StrikeAI Director 20 Advanced technology dubbed &8220;The AI Director drove L4D\'s unique gameplay &8211; customizing enemy population effects and music based upon the players\' performance L4D 2 features &8220;The AI Director 20 which expands the Director\'s ability to customize level layout world objects weather and lighting to reflect different times of dayNew melee weapons &8211; axe chainsaw frying pan baseball bat &8211; allow you to get up close with the zombiesFour different survivors New Story New dialogueMore game On day one L4D 2 features more co-operative campaigns more campaigns and maps for the Versus game modes than L4D 1 plus support for Survival mode out of the boxStats rankings and awards system drives collaborative play