Nihlus Kryik is one of the Citadel Council's most decorated Spectre agents. Born in a small mercenary outpost outside Hierarchy space, he learned the hard way to fight for anything he wanted. His father died when he was 16, and his mother forced him to join the turian military. His outsider status made life difficult; though he was always at the top of his class, his superiors and peers never truly accepted him.

As a soldier, Nihlus' skills were unquestionable. His attitude, however, often got him in trouble. On several occasions, he disobeyed direct orders to do what he thought was best. Although his instincts were usually proven right, his notoriety grew. Even when he single-handedly routed an enemy patrol, and saved his squad from ambush, his commanding officers berated him for his recklessness. His military career seemed to stall before it even began.

After being reassigned to a new squad for the third time, Nihlus was introduced to Saren Arterius, a fellow turian and a Spectre. Saren was impressed with the young soldier. He befriended Nihlus and offered to mentor him. Within a year of meeting Saren, Nihlus was asked to join the Spectres.

Free from the restrictions of military procedure, Nihlus excelled in his new role. He quickly stepped from his mentor's shadow and established himself as one of the Council's top agents. Since then, Nihlus has completed countless missions as a Spectre, each one more difficult and dangerous than the last.

Cool under pressure, Nihlus has an uncanny ability to find an enemy's weakness and exploit it. Though his methods aren't as brutal as Saren's, he will not hesitate to efficiently and thoroughly eradicate anything or anyone that stands in his way.

Features :

• Immersive RPG: Determine the fate of mankind as you lead an elite tactical strike force as an epic galaxy-wide conflict unfolds. "Mass Effect" will take the player into new depths of an action-roleplaying game, with choice-based gameplay.
• Rich and engaging storyline. While defending galactic peace and earning a position of respect for humanity in the community, gamers will discover that a greater conflict between organic life and artificial intelligence exists. Players' decisions and actions will serve to shape the destiny of all life in the galaxy as you become absorbed in the story that is "Mass Effect," the first game in an epic trilogy from BioWare. They will become the center of an engrossing story as they battle against alien life forms to save the galaxy from threatening armies.
• Player controls the ultimate fate of the galaxy: The player's decisions and actions will serve to shape the destiny of all life in the galaxy, while raising humanity to the pinnacle of galactic civilization via noble means or via tyranny.
• Real-time squad based combat: "Mass Effect" employs a real-time, squad based, tactical combat system. Players will be immersed in intense, challenging and exciting combat.
• Explore uncharted worlds: In addition to the main story arc of the game, players will be able to visit a large number of uncharted, unexplored planets which are not directly tied to the main story. At any time during the campaign, a player can choose to explore one of these planets in an all-terrain rover in order to discover new alien life, resources, ruined civilizations and powerful technologies.
• Digital actors: "Mass Effect" features a huge cast of in-engine digital actors that you will encounter as NPCs, enemies or as party members. Each will have life-like facial and body movements, and an advanced dialogue system will give them engaging personalities.
• Character customization. Players will be able to choose from a variety of stunning, photo-realistic character appearances at the start of the game, and throughout the game can increase various statistics which will have an impact on their performance during gameplay. Equipment, weapons and armor that are acquired during the course of the story will change the appearance of the characters.
• Next-generation gaming defined. "Mass Effect" takes advantage of Xbox 360's hardware providing gamers with exciting new experiences, including photo-realistic, high definition graphics on an epic scale. As the future of gaming goes online, Xbox360 live features, including premium downloadable content and recognition of achievement will be available via the Xbox Live service.