There's a scene in the beginning of Mass Effect 2 when a Cerberus operative walks into the room and shoots someone in the head without missing a beat. It's about as dramatic as an entrance can get, but it sets the tone for the game beautifully. Mass Effect 2 grabs your attention with its jaw-dropping intro and refuses to let go, dropping you directly in the line of fire. Want to save the universe? Hope you're ready to get your hands dirty. There's no such thing as good guys are bad guys anymore, just the ones who live and the ones who don't.