According to ESRB, this game contains: Violence
Parents should be advised that there is little going on here other than people punching other people. If that's fine with you, it's unlikely that there's much more in this videogame to upset you, as the closest this game gets to graphic is when a thug is punched off a rooftop.
For Batman fans, this isn't a must-get game, but it's one that's probably worth at least a rental, especially if you're a fan of the animated series.
Beat-'em-up fans should keep looking—there's nothing here that hasn't been done elsewhere.
Deaf and Hard of Hearing gamers will miss out on the cutscenes, as there is no subtitle option, but gameplay shouldn't be much of a problem.