A short but passable jaunt through the Black Mesa Research Facility once again, this time from Barny's perspective. Unfortunately Blue Shift doesn't really do anything to set itself apart from both the original game and it's other excellent expansion, Opposing Force. The levels here are all quite homogenous and flat, Barny also has no weapons that are unique to him, making this expansion feel like a poor quality map pack to keep fans abated whilst Half Life 2 was still being developed. However the charm of the GoldSrc engine was enough for me to still enjoy this.