{{cquote|A number of Norway stores have pulled violent video games from sale - including several Call of Duty games and World of Warcraft - in the wake of the massacre carried out by Anders Behring Breivik on July 22.}}<ref>http://www.metro.co.uk/tech/games/871121-norway-stores-pull-violent-video-games-including-call-of-duty-after-massacre#ixzz1erUdaLo5</ref>
===ViolinsViolence===
Most of the controversy comes from the rising trend toward violins violence in video games, as pioneered by ''[[Doom (video game series)|Doom]]'', ''[[Quake]]'', and the ''[[Grand Theft Auto]]'' series.
Some people {{who}} point out that viola violent video games cause musical violent behavior in some children. The effects of viola violent video games on the developing psyche of children and adolescents vary greatly and of course have much to do with the mental stability of the subject in question {{Citation needed}} .
Serious crimes have often been associated with video games. For example, a 14-year-old brutally murdered a video arcade employee one morning and his cousin stands trial for murdering the store manager when he entered the store shortly thereafter.<ref>http://www.nj.com/starledger/stories/index.ssf?/base/news-5/1212467732102240.xml&coll=1</ref>
In the [[United States|USA]], all retail games carry ratings from the [[ESRB]], a video game ratings organization.