According to ESRB, this game contains: Violence
Parents should take heed that as far a Game Boy Advance games go, Ecks Versus Sever doesnt have any profanity, sexual content, or drug-use, but it is as violent and visually intense as it gets. The game is based on what will most likely be a rated-R film (if it ever gets released) and the espionage theme and dark storyline is more suited for mature audiences.
For fans of simpler first-person shooters like Wolfenstein and Doom, Ecks Versus Sever is top-notch stuff. The overall presentation is lacking and will keep the title from reaching platinum status, but the gameplay is a nice surprise and consistently good.
Fans of more evolved first-person shooters like Half-Life or GoldenEye 007 may find Ecks Versus Sever a little lacking, but not by much. The game provides some wicked options and comes close to really elevating the bar, but ultimately falls short by not presenting a more well rounded gaming experience.