According to ESRB, this game contains: Violence
Parents shouldn't worry too much about the game's T rating—the violence is little more than beating guys up, something that kids have been doing since before the days of the Nintendo Entertainment System. There's no blood or gore, as defeated enemies simply disappear from the screen entirely. Parents should probably be more concerned about wasting $20 on a game that isn't very good, and their kids will shelve, never to play again, within minutes.
Hardcore gamers can walk right by this one. While players will occasionally find a diamond in the rough in the $20 rack, this game is not one of them.
Casual gamers can also safely give this one a pass, unless they're diehard Aquaman fans—but I'm not even sure such a thing exists.
Deaf and Hard of Hearing gamers shouldn't have any concerns with this title—at least not in the sound department. There's no spoken dialogue at all, and the only talking in the entire game happens during the lame cutscenes between chapters—complete with all of the text in comic-book speech bubbles.