The main antagonist and final boss ofMetroid, it'sremakeandSuper Metroid. The once benevolentChozosupercomputer that ascended into being the leader of theSpace Piratesdue to her ability to propagate and weaponizeMetroids. She is an artificialbrainwithspikesjutting out and has asingle eyeball. She is protected in a massiveglass containerthat is connected withwiresandcables. In Super Metroid she even gains a fully mechanical body that has a mouth, torso, arms and legs.