Introduction Violent video games have been becoming increasingly popular among children and adolescents of all ages since their debut nearly 30 years ago. This growing popularity is generating a growing concern that these videos, sometimes very graphic and with realistic characters, may have a negative influence on younger generations. Although it has never been proven, there is speculation that some of the high school shootings across the country were committed by students who were regular players of violent video games. Because of these concerns, in 1994 the Entertainment Software Rating Board (ESRB) established a non-profit, self-regulatory organization to adequately rate all video games EC (early childhood), E (all), E10+ (all from 10 to 10 years). over), T (adolescent), M (mature) and AO (adults only). When evaluating the effectiveness of violent video game ratings, it is unknown how effective these ratings are for the intended audience (Becker-Olsen & Norberg, 2010). The purpose of this article is to present a literature review of existing articles related to the possibility of violent video games promoting aggressive behavior. The hypothesis put forward was that people who played nonviolent video games showed more prosocial behavior than those who played violent video games showed more antisocial and aggressive behavior. A search was conducted on regular Internet search engines and EBSCOhost using the title “violent video games can promote aggressive behavior.” The research articles presented are obtained from five case studies, each focusing on the different measurements obtained, the methods used, the participants involved, the study designs and the results of the studies.Measures Demonstrating Viole...... middle of paper .......DOI: 10.1080/10888690903288748. Retrieved from EBSCOhost research database. Polman, H., Orobio De Castro, B. & Van Aken, M. A. G. (2008). Experimental study of the differential effects of playing versus watching violent video games on children's aggressive behavior. Wiley-Liss Inc. Interscience. Doi: 10.1002/ab.20245. Retrieved from EBSCOhost Research Database.Saunderson, Matt (August 17, 2005). The American Psychological Association says violence in video games is harmful to children's health. Kombo.com. Retrieved from http://ps3.kombo.com/Article.php?artid=1760.Suhn Lee, M., & Barr, R. (August 2004). Effects of violence in video games on prosocial and antisocial behaviors. Journal of Young Investigators, 11(2). Retrieved from http://www.jyi.org/Volumes/volume11/issue2/articles/lee.html.