Professor Buchman said, "those who play the game regularly continuous severe. Can see that the world is a place full of enemies and violence. Study results pointed to a cumulative impact. To expect hostility may isn't the only reason that makes the game play very aggressive, but research shows that this is certainly one important factor. We find that after a violent game play, players will expect others to have aggressive behaviour. This may make the expectations they generate a high armor up and respond with aggression.