Discovered technology from the old world.

The glowing substances that appear on the back of its head and surrounding its tail disappear when deactivated. The color of it seems to depend on the power crystal in its head, accessed by deactivating and taking off the back panel, usually covered by the substance.

This is the only uncovered example. Its population is unknown. While it seems to understand modern language fine, it can't speak, resorting to gesturing, body language and adjusting the light in its eye-crystals to communicate.

Its arms are covered in a softer, more flexible material that feels like plastic. Underneath is a thin skeletal metal structure. Perhaps its legs were covered in a similar material in the past.