Mass Effect 2 is the sequel to BioWare's popular Mass Effect game. The second game in this epic trilogy allows players to import their characters from the first Mass Effect game, but be warned, certain decisions and actions you took in the first game can have a lasting effect in the second. The detailed storyline is intricately woven to allow players to start from scratch or continue the story where the first game left off. A new assortment of characters join the game, each with their own unique storyline missions that the player can choose to undertake to gain their loyalty and unlock new skills in doing so.