If you're in the mood for an thought-provoking read this Sunday afternoon, you should check out a recent article on Games Radar which dissects Portal's "feminist critique of the FPS genre." The essay describes how the game purposefully avoids many of the masculine trends with which shooters are often imbued -- for instance, the game's use of an anti-sensational female protagonist, or the way the game dispatches the game's cuboid male lead.
Spoiler alert: Unavoidably, the essay takes a Freudian look at the key gameplay mechanic of the game, comparing a portal to a vajayjay. If you'd like to preserve your innocent opinion of the game, you might actually want to steer clear of this particular article. Fortunately, we're firm believers in the "sometimes a banana is just a banana" school of thought, lest we be subject to disturbing imagery next time we go traipsing through the Aperture Science building.