According to ESRB, this game contains: Animated Blood & Gore, Animated Violence
Parents will likely balk at the gore (which can be turned off) and occasional cussing that is in the game. It can't be stated enough that this is a game aimed towards older audiences.
FPS fans should be aware that this is a largely multiplayer experience. There is no story mode or plot of any worth to anchor the gameplay. If you want a deeper FPS, look elsewhere. Those seeking a good multiplayer run, I'd advise no less than three players to get the most our of it. Despite its age, it makes a good rental.
Nintendo 64 owners may want to give Acclaim's Turok: Rage Wars a look. It was the first console game to try to provide a solely multiplayer experience.
Dreamcast owners can always look to their own version of Unreal Tournament and Quake III Arena.
Quake-loving PlayStation 2 owners may want to give the well-received Quake III Revolution a whirl.
Owners of USB products should be glad to know that the game recognizes your USB mouse USB and keyboard with ease.