Necromites

Necromites are small robots designed by Necrola. They turn killed characters into Killer Robots. The only way to revert one who turned into a Killer Robot is to tear this out of their chest.

History
The Necromite was designed by Necrola in the future. She travelled back in time to The Room of Star Wars to use them. She was able to obtain infinite amounts by using Cloners. Throughout the rest of the rooms, she sent these to robotify corpses.

Trivia

 * They look like the skull of a dragon, emphasizing on the "necro" part.