The best platformer ever. Period
If you didn't get the hint from the infected prisoner part of the review, this game, while now outmatched by Half Life and FEAR, is quite possibly one of the most intensifying/scary games I've ever played. It's the only game to scare me on the sound level. This game should be in every "Best games ever" list. Enough talk, experience the magic for yourself: http://www.rocket-surgery.net/abuse/downloads.html