Enemies [Brinstar] Enemies [Norfair] Enemies [Kraid's Lair] Enemies [Ridley's Lair] Enemies [Tourian] Mother Brain The central hub of the Space Pirate stronghold, "Planet Zebes." It serves as a breeding ground for Metroids with the aim of universal conquest. Zebetite serves as the energy source. While it's referred to as a massive mechanical lifeform, its true nature remains unknown. Can you destroy Mother Brain and prevent the Metroids from further proliferation?