According to ESRB, this game contains: Animated Blood, Animated Violence
Parents are sure to take issue with this game, but should keep in mind that it is rated M. The emphasis on killing and the occasional busty babe should send up red flags regardless no matter how open-minded you may be.
Sniper fans will likely want to give this game a try, but I wouldn't recommend purchasing it though. Its unique and somewhat flighty controls and brevity don't make it a good purchase. It begs for compatibility with a light gun so badly that you'd be better off renting or buying a gun shooting game.
PlayStation 2 owners are advised to look elsewhere for a title to justify the console. Released at launch, Silent Scope only proves that early adoption of a console comes at a price in terms of quality of software. Perhaps they should take advantage of the backward compatibility and buy Point Blank or Time Crisis.