From Halopedia, the Halo wiki
Retrieved from "https://www.halopedia.org/index.php?title=Thorax&oldid=1299789"
The Thorax was an ambient lifeform intended to inhabit Installation 04 in Halo: Combat Evolved. Mostly blue, with luminous yellow on its back, it had thin arms but long, powerful legs and a single eye. It was cut from the final game.