Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Oh. My. God.

Revolutionary. This is one of the best games I ever played. The skeletal movement system and A.I. make for a very awesome time. It's long and kind of boring in some parts, but its really fun. I recomend Blue Shift and Opposing Force, as they add to the fun and tie together nicely with the story. The High-Def models that come with BS are ok, but I found out that the ones at http://ambientimpact.hl-improvement.com/index.htm were better because they have moving eyes, 5 fingers, and a much higher poly count. BUY THIS GAME