According to ESRB, this game contains: Drug References, Strong Language and Violence
Parents will probably want to steer young ones away from this game. To begin with, the play is entirely centered around shooting bad guys in the head. I imagine this might not exactly be the sort of entertainment most moms and dads will think is appropriate for little Jimmy or Susie. Besides that, the tone and attitude of the game is focused squarely at older teens and adults. The main antagonist is a drug dealer surrounded by bikini-clad babes, the hero's father (holding a box of kittens) gets chopped up by a combine in the opening cinematic, and there are about a thousand other things that are quite entertaining for those who are old enough, but not appropriate for kids.
Action gamers will find a basic, formulaic entry that's best enjoyed in small doses. I have to admit that flying through the air in slow-motion and headshotting a goon from five hundred feet away did bring a smile to my face, but I'd guess that many people will find this title a little too simple and repetitive, especially if they don't get into the humor.
Deaf and Hard of Hearing gamers have access to full subtitles during the cutscenes and major chunks of dialogue, but the phrases and quips are not signaled, and there are a few times when the ability to hear an enemy that's not on screen would be helpful. (If you play this game and find that you're instantly dead from one explosion, look around for a thug with a rocket launcher somewhere above you.) It's definitely playable without sound, but some optional on-screen indicators to help locate enemies would have been nice.