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Mother Brain (マザーブレイン Mazā Burein?) is the overarching antagonist of the Metroid series. Mother Brain is a cold-hearted and ill-tempered biological supercomputer created by the Chozo, but turned against them when the Space Pirates and Ridley invaded Planet Zebes.

She serves as the main antagonist of Metroid, the overarching antagonist of Super Metroid, the central antagonist of Metroid: Zero Mission, and the posthumous overarching antagonist of Metroid: Other M.

In Super Smash Bros. Brawl[]

Mother Brain appears as a sticker with its appearance from Metroid: Zero Mission. It increases flinch resistance by 147.

In Super Smash Bros. 3DS/Wii U[]

MotherBrain

Mother Brain attacking Samus.

Mother Brain appears as an Assist Trophy, and will fire a beam from her eye as well as rinkas. You can tell when Mother Brain is about to attack when the glass breaks. The beam will rack up multiple hits and cause lots of damage.

Trophy Description[]

Hailing from the Metroid series, this evil boss resides on the planet Zebes. When she appears in Smash Bros., she attacks with energy projectiles and a beam from her eye. It's actually possible to defeat her, and for once doing so won't start a self-destruct sequence.

In Super Smash Bros. Ultimate[]

Mother Brain once again appears as an assist trophy, functioning the same way she did previously.

Trivia[]

  • Though it is based on Mother Brain's appearance in Metroid: Zero Mission, it has attacks from her time in Super Metroid.
  • It is possible to defeat Mother Brain.
  • You cannot absorb or reflect Mother Brains attack, so it's best to try to avoid it.
AssistTrophySymbol Assist Trophies
Introduced in
Brawllogo
Andross  · Barbara  · Devil  · Dr. Wright  · Excitebikes  · Gray Fox  · Hammer Bro.  · Helirin  · Isaac  · Infantry & Tanks  · Jeff Andonuts  · Jill  · Kat & Ana  · Knuckle Joe  · Lakitu and Spinies  · Little Mac  · Lyn  · Metroid  · Mr. Resetti  · Nintendog  · Ray MK III  · Saki Amamiya  · Samurai Goroh  · Shadow the Hedgehog  · Starfy  · Tingle  · Waluigi
Introduced in
Super Smash Bros. for 3DS & Wii U
Ashley  · Chain Chomp  · Color TV-Game 15  · Dark Samus  · Dillon  · Dr. Kawashima  · Elec Man  · Ghirahim  · Ghosts  · Isabelle  · Magnus  · Midna  · Mother Brain  · Nightmare  · Phosphora  · Prince of Sablé  · Riki  · Sheriff  · Skull Kid  · Starman  · Takamaru
Introduced in
Smash Ultimate logo glow
Akira Yuki  · Alucard  · Arcade Bunny  · Black Knight  · Bomberman  · Burrowing Snagret  · Chef Kawasaki  · Flies & Hand  · Guile  · Kapp'n  · Knuckles the Echidna  · Krystal  · Moon  · Nikki  · Rathalos  · Rodin  · Shovel Knight  · Spring Man  · Squid Sisters  · Sukapon  · Thwomp  · Tiki  · Vince  · Wily Capsule  · Yuri Kozukata  · Zero
MetroidSymbol Metroid universe
Characters Samus Aran (64  · Melee · Brawl  · 3DS/Wii U  · Ultimate)
Zero Suit Samus (Brawl  · 3DS/Wii U  · Ultimate)
Ridley (Ultimate)
Dark Samus (Ultimate)
Side Characters Bosses Ridley  · Meta Ridley
Assist Trophies Metroid  · Dark Samus  · Mother Brain
Mii Fighter Costume Samus Aran
Background characters Ridley  · Kraid  · Parasite Queen
Stage Hazards FG II-Graham  · Joulion  · Zero  · Ridley
Enemies Geemer  · Kihunter  · Metroid  · Reo
Stages Planet Zebes  · Brinstar  · Brinstar Depths  · Norfair  · Frigate Orpheon  · Pyrosphere
Brinstar Escape Shaft
Item Screw Attack
Music List of Music (Metroid series)
Collectibles Trophies Melee Trophies  · Brawl Trophies  · 3DS Trophies  · Wii U Trophies
Stickers List of Stickers (Metroid series)
Spirits List of spirits (Metroid series)
Masterpieces Metroid  · Super Metroid
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