Description: Armored Core 4 reinvigorates the brand by offering an all-new storyline, new environments, and online capability. The 10th anniversary of the acclaimed franchise is punctuated with a leap to next-generation platforms. Multiplayer functionality allows up to eight players to battle online. Join one of six factions specializing in different aspects of battle. 30 missions played out in detailed futuristic 3D environments. Fly through canyons and rip through cities battling multiple enemies. Deploy "Quick Boost" and "Over Boost" features for precise explosive movement and precision control of AC units. Engage "Primal Armor" the all-new defense shield that adjusts its strength according to specific battle conditions. [Sega]