Extra Lives: Why Video Games Matter is a 2010 non-fiction book by journalist and critic Tom Bissell discussing the social relevance and importance of video games as well as defending the medium against detractors.
E.T. the Extra-Terrestrial | Days of our Lives | Private Lives | Extra-vehicular activity | Days of Our Lives | The Private Lives of Elizabeth and Essex | Extra (TV series) | Extra | Taking Lives | Parallel Lives | Taking Lives (film) | BBC Radio 4 Extra | The Lives of a Bengal Lancer | The Best Years of Our Lives | Footballers' Wives: Extra Time | Extra Challenge | Dream Brother: The Lives and Music of Jeff and Tim Buckley | The Murderer Lives at Number 21 | The Lives of Others | The Little Girl Who Lives Down the Lane | Sordid Lives | No One Lives | God Lives Underwater | extra-vehicular activity | African American Lives | Word Is Out: Stories of Some of Our Lives | Voices Within: The Lives of Truddi Chase | Topless Women Talk About Their Lives | The Three Lives of Thomasina | The Soundtrack of Our Lives |
Video game theorist Tom Bissell, in his book Extra Lives (2010), notes the example of Call of Duty 4, where a player can all but kill their digital partner during gameplay without upsetting the built in narrative of the game.
During the game, Alex can collect "Baums" (the currency of Miracle World) which can then be used to purchase extra lives, items, power-ups and vehicles for Alex Kidd from shops at the start of several stages, such as the Sukopako Motorcycle and "peticopter" (a small pedal-powered helicopter).