The models, and their respective animations, contain double the amount of polygons over their original versions.

One of Half-Life: Blue Shift's biggest selling points has to be the 'High Definition Pack', a graphics upgrade for Half-Life, which adds visually enhanced player and weapon models. In Half-Life: Blue Shift, you play Barney Calhoun, who as a security guard has access to far more areas that Gordon Freeman ever did! Find out more about the Alien invasion and explore new areas of the Black Mesa Research Facility that you never knew existed in over 30 levels of action! Have you always wanted to play through the Black Mesa facility as one of the security guards from Half-Life? Your wishes have been answered with Half-Life: Blue Shift! Developed by Gearbox Software, the developer of the award-winning Half-Life add-on Opposing Force, Blue Shift introduces a whole new Half-Life episode to the series! More maps, more puzzles, and more highly-addicting gameplay awaits you, so what are you waiting for? Stray up that helmet, grab your sidearm and get going!

Black mesa security guard