Transformers (Earth-1984)

The Transformers (or Cybertronians) are an extraterrestrial species of robots who can change into an alternate mode.

History
The Transformers are a species of sentient, living robotic beings who originated from Cybertron. The designation "Transformer" stems from the species' generally-shared ability to change their bodies at will, rearranging their component parts from a robotic primary mode (usually, but not always, humanoid) into an alternate form; generally vehicles, weapons, machinery, or animals.