According to ESRB, this game contains: Blood and Gore, Mild Language, Suggestive Themes
Parentswill want to take the Teen rating into consideration before picking up Buffy for the kids. While the games not super-graphic or overly gory, it can be a little gruesome with all the stakings and decapitations. Honestly, content-wise, the game is on par with the show—mild innuendo in some of the dialogue, some fantasy violence, and a swear word here and there. If you allow your child to watch the show, then playing the game shouldn't be a problem.
Fans of the show will want to run right out and grab this as soon as possible. The game plays a lot like a lost episode of the series (circa season three according to some of my friends who follow the show) and the game does a magnificent job of capturing the atmosphere and tone of the television program. In regards to being faithful to its source material, Buffy is a winner.
People who've never seen the show have nothing to fear, either. The game does a nice job of filling the player in on the Buffy mythology, and players who've never seen the show will no doubt be flailing away at the undead in no time. In fact, I'd imagine that some people who've never seen the show might check it out after playing the game.
Hearing impaired gamers are in for a treat—the game features the best subtitling I've ever encountered, with even incidental lines of dialogue uttered during combat subtitled.