A Really Good Game For Kill Zombies, Cooperate With Your Friends, And Pass A Good Time, Sometimes You Can Laugh with The Game, Other Times You Can Feel Angry 'Cause you Lose in the rescue Chapter in The Middle Of The Rescue or Putting Gas To the Generator/Car, Sometimes You Can Feel Happy When You Are Rescued, But All Who Play This Game, (Not All) Feel Entertained When You Play L4D2 or 1, However, The Two Games Are Very Entertaining, And I Love Them, Thanks Valve For That Amazing Game, Your Games Are A Wonderful Experience, Every One Of Them.