According to ESRB, this game contains: Blood, Violence
Parents should steer their young ones clear. The difficulty level is through the roof, and the story won't be at all appealing to preteens. The game is also filled to the brim with scary monsters and sword slashing, so you're better off with something a little more kid-friendly. There is no questionable language or sexual situations.
Action gamers or fans of Devil May Cry should rent the game and give it a shot. The Legion system is great, and there's nothing but wall-to-wall action from the word "go." Chaos Legion may not do much else, but I can't deny that it's immensely fast and furious. Brace yourselves for a challenge.
Gamers on a budget should tread carefully. If you're skilled with your thumbs, it won't take more than a day or two to reach the end of the game. Leveling up, completing the disc's one sidequest, and experimenting with the unlockable character may add a few more hours of playtime, but it's hard for me to justify it as a $50 purchase.
Deaf and Hard of Hearing gamers will have no problems. All dialogue is accompanied by text via the menu, and there are no significant audio cues.