According to the ESRB, this game contains: Intense Violence, Blood
Parents will want to heed the ESRB rating. There's tons of over-the top swordplay and blood gushes, but it's somewhat over the top and unrealistic. However, there are a few moments during some of the cutscenes that are a bit graphic. Still, if your child can sit through a PG-13 film, they can probably play this with no problem. There are no sexual situations or harsh language.
Action fans won't want to miss this one. It easily justifies the price of purchase with its sharp graphics, loads of thrills, and multiple extras available after completion.
People like me who disliked the other Onimusha games might want to give it a try. The controls are totally revamped and the story is better than it's been before. Samanosuke's action is basically the same, but Jacques makes the experience different enough to be worth a look.
Deaf and Hard of Hearing gamers should be fine. Subtitles are available, and there are no significant audio cues except the grunts and growls of monsters hiding off-camera. But, it's not a very big deal—you'll still get ambushed by enemies hiding around corners just like normally-hearing folks will.