According to ESRB, this game contains: Animated Violence, Suggestive Themes
Parents should be aware that there are no women in the game to be exploited to that might be a plus. However, it is still wrestling so clobbering opponents is still the order of the day.
WWF fans who went out and got the Dreamcast version of WWF Attitude should pick up WWF Royal Rumble just because it by default the best wrestling game on the console.
However, if you own a PlayStation, I suggest you wait for the upcoming release of WWF Smackdown! 2. If you own a Nintendo 64, then I would suggest WWF No Mercy.
Anyone looking for multiplayer action will find something to like in Royal Rumble, the aptly named Royal Rumble mode is great when played with a buddy or two.