Xbox 360 - Quantum Theory (Used)

The game is a third-person shooter incorporating a cover system. Players can fire their weapon from the hip, aim down the weapon sight for precision, or blindfire from cover. Enemies explode upon death and a successful headshot is rewarded by a slow motion close up view of the head exploding. Syd can throw Filena as a projectile weapon. Syd can use his guns as melee weapons. Syd's initial melee attack can also result in a follow up attack by Filena. Some levels feature environments that can change dynamically, including moving platforms that Syd must hang on to or jump off. Bosses make appearances throughout the campaign, requiring the player to identify and target their weak points.