According to ESRB, this game contains: Animated Violence
Parents, Oni is violent and has an edgier adult feel to it, but not so much so that it isn't approachable by kids. Oni never revels in any gratuitous amounts of violence or profanity and feels positively mild in comparison to some of today's top games that push the envelope of good taste.
Gamers, who were waiting a long time for Oni, will probably be disappointed. Despite boasting some innovative features on paper, the game doesn't look or play all that different from other games currently dominating the market.
Action game and first-person shooter fans that don't mind the monotony and sometimes laborious mission designs might find themselves enjoying the title for its anime trappings and dual combat styles.
Anime fans may also appreciate Oni as an interactive tribute to the animation style, but the story is generic beyond belief, and Oni never feels like an anime where it counts the most—in the gameplay.
Women gamers can at least appreciate the way the Konoko character is handled with grace and dignity. Konoko doesn't sport any incredibly skimpy outfits and her portrayal is far cry from the male-fantasized vixens that usually dominate the market.