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This article covers something that is not from the Mario franchise.
Mario Sonic Rio 2016 artwork Make sure to only provide information (including a profile) relevant to the Mario franchise and related media.

Mother Brain is the main antagonist of the Metroid franchise, having first appeared in the game of the same name. Mother Brain has made cameos and a few mentions in Mario-related media, in which she is first mentioned in the Nintendo Comics System comic "Duh Stoopid Bomb!," whereas Mother Brain's first physical appearance in a Mario-related game is WarioWare, Inc.: Mega Microgame$!.

In Super Mario RPG: Legend of the Seven Stars[]

Mother Brain is briefly mentioned by Samus Aran in the guest room of the Mushroom Castle, where Samus says she is resting up before battling Mother Brain.

In WarioWare, Inc.: Mega Microgame$![]

Metroid WWIMM screenshot

Samus facing Mother Brain in the Metroid microgame in WarioWare, Inc.: Mega Microgame$!

Mother Brain is featured within the microgame Metroid, which is a recreation of the final boss fight in the original Metroid. As such, Mother Brain's sprite is reused from the first Metroid. To win the microgame, Samus must blast Mother Brain repeatedly with missiles while dodging Mother Brain's attacks to defeat her.

In the Super Smash Bros. series[]

Mother Brain SSBU screenshot

A screenshot of Mother Brain in Super Smash Bros. Ultimate

As of Super Smash Bros. for Nintendo 3DS, Mother Brain is featured as an Assist Trophy. Her first Super Smash Bros. appearance is in Super Smash Bros. Brawl, in which Mother Brain makes a cameo appearance as a sticker.

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In other media[]

Nintendo Comics System[]

In the "Duh Stoopid Bomb!" story, Mother Brain (listed as "M. Brain" is listed among the characters who think that King Toadstool is stupid.

Timeline[]

Game Role Year Console Notes
Super Mario RPG: Legend of the Seven Stars Mentioned 1996 Super Nintendo Entertainment System Mentioned by Samus in the Mushroom Castle
WarioWare, Inc.: Mega Microgame$! Brief role 2003 Game Boy Advance Appears in the Metroid microgame, in which Samus must defeat Mother Brain
Super Smash Bros. Brawl Cameo 2008 Wii Featured as a sticker
Super Smash Bros. for Nintendo 3DS Non-playable character, enemy, cameo 2014 Nintendo 3DS Appears as an Assist Trophy, an enemy in Smash Run, and has her own trophy
Super Smash Bros. for Wii U Non-playable character, cameo 2014 Wii U Appears as an Assist Trophy and a trophy returning from Super Smash Bros. for Nintendo 3DS
Super Smash Bros. Ultimate Non-playable character, cameo 2018 Nintendo Switch Returns as an Assist Trophy, and is now featured as a Spirit

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