| Based on Valve's game of the same name, this translates all the space-jumping, puzzle-solving antics into 40 2-dimensional levels. It remains a fun alternative while it lasts. Slightly easier than the 3D version, for those unused to navigating quickly in FPS games. The fact that each puzzle is merely a single screen gives it a compact feel and ensures a level never gets too long. Level design is excellent, introducing each element simply before asking us to ponder, navigate and bash our way through some fiendish layouts. |