This chamber has the Repulsion Gel and the Cleansing Gel and advanced Portal jumping.
A goat found in an inaccesible part of this map
- A painted "LoneWolf2056" can be found.
- In many inaccessible areas around the maps, stock & un-textured models of goats can be found. According to the developers, goats became a running gag during development, leading to the placement of the models for fun. One of them is found in this chamber.
- The music played during this chamber is known as Testing Begins.