Travel across the universe to uncover the mystery that is threatening the galactic civilization in Mass Effect, a role-playing video game. Customize the appearance of your character, Commander Shepard, at the start of this Xbox 360 game and change various statistics that will impact your gameplay. Acquire new weapons and armor, and upgrade your abilities to fight against mechanical beings, who are called Reapers , during the course of this role-playing video game. Mass Effect lets you make complex decisions that will affect the fate of the Milky Way. Besides the main story, this Xbox 360 game includes side quests that allow you to explore uncharted planets in the universe and discover new life and technologies. Enjoy intense third-person action as Mass Effect features a real-time, squad-based combat system.