Left 4 Dead 2 is a very fun game, Playing as zombies and teaming up to stop the humans or being humans and teaming up to make it to the finish, Is VERY fun. I have gotten addicted to this game for a while now. I'll point out the stuff that may be bad for kids though, The Violence, The violence in this game is pretty extreme, It's from gunning zombies down with machine guns or blowing off their limbs with shotguns, Or taking a Axe to the head of a zombie as blood splatters the screen, The violence is really gory. The Language, The language in this game isn't even close to as bad as game's like GTA4, There are no F words. But God D***, S***. B***** and every other word is used often, Sexual Content, None. Overall, It is Gory, Has some language, But Im sure alot of Teenagers will be able to handle it, It is a very fun game.