Some video games teach kids the wrong values. Violent behavior, vengeance and aggression are rewarded. Negotiating and other nonviolent solutions are often not options. Women are often portrayed as weaker characters that are helpless or sexually provocative. On the other hand, a University of Buffalo study suggests that violence and bad behavior played in the virtual world may be contributing to better behavior in the real world. Gamers who play violent games may feel guilty about their behavior in the virtual world and this may make them be more sensitive to the moral issues they violated during game play.