Gamers fond of screaming at the screen can now actually play a game with only their voice. Konami announced it has shipped LifeLine, an adventure game completely controlled by commands given through a USB headset. The third-person shooter follows a woman named Rio, who is voiced by She Spies star Kristen Miller, as she explores a mysteriously abandoned space station. It is rated "M" for "Mature" and retails for $39.99.