A pre-release video of the Tentacle ascending from the Blast Pit.
A trailer for the first Half-Life Platinum collection, including Half-Life, Opposing Force, Team Fortress Classic and Counter-Strike.
An original Half-Life trailer, dating back to 1997.
A pre-release video of a scientist getting teleported.
A pre-release video of Barnacle killing Barney.
A 360-degree demonstration of the Tentacle pre-release model.
A demonstration of the Bullchicken (Bullsquid) tail swinging animation.
A 360-degree demonstration of the Bullchicken (Bullsquid) pre-release model.