Mother Brain - Revision history

UNHchabo: /* Interactions */ 32x32 grid

2026-01-11T21:52:09Z

‎Interactions: 32x32 grid

UNHchabo: /* Interactions */ Screen Scroll demonstration

2025-08-31T08:44:12Z

‎Interactions: Screen Scroll demonstration

Tropylium: /* See also */ →cat

2025-07-28T10:59:37Z

‎See also: →cat

UNHchabo: /* Rainbow Cutscene */ Table for health threshold, and note about exactly 100hp being fine (as in GT Classic)

2022-07-04T21:34:12Z

‎Rainbow Cutscene: Table for health threshold, and note about exactly 100hp being fine (as in GT Classic)

UNHchabo: /* Rainbow Cutscene */ Post-MB2 death

2022-07-01T01:29:29Z

‎Rainbow Cutscene: Post-MB2 death

Professorschool: /* Rainbow Cutscene */

2022-04-22T19:09:41Z

‎Rainbow Cutscene

UNHchabo: /* Rainbow Cutscene */ Health thresholds given by susreime

2020-07-15T08:10:54Z

‎Rainbow Cutscene: Health thresholds given by susreime

StitchL0rd: Moved info about the glass to the General Knowledge section

2020-06-21T01:42:07Z

Moved info about the glass to the General Knowledge section

UNHchabo: /* Offense / Defense */ Rainbow Beam damage delay video

2019-03-26T05:39:24Z

‎Offense / Defense: Rainbow Beam damage delay video

UNHchabo: /* Interactions */ Adding IFB's video for the turret snipe pixel

2018-12-12T17:50:59Z

‎Interactions: Adding IFB's video for the turret snipe pixel

← Older revision		Revision as of 21:52, 11 January 2026
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	== Interactions ==		== Interactions ==
		+
		+	The shots from the turrets are able to collide with missiles and super missiles in ways that can be unexpected. This is because enemy projectiles and Samus' projectiles detect collisions with each other based on whether or not they're in the same 32 pixel x 32 pixel grid, rather than whether the two hitboxes collide.

	If Samus is struck by a turret shot, it will produce a cloud that lingers in the air for around a second. This cloud can consume a Missile or Super Missile if one comes in contact with it, which is more reason to be careful when firing at MB1 in lower-percentage categories. There is a group of white pixels that will appear in the air as long as this cloud is present.		If Samus is struck by a turret shot, it will produce a cloud that lingers in the air for around a second. This cloud can consume a Missile or Super Missile if one comes in contact with it, which is more reason to be careful when firing at MB1 in lower-percentage categories. There is a group of white pixels that will appear in the air as long as this cloud is present.

← Older revision		Revision as of 08:44, 31 August 2025
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	After MB1 has been defeated, the screen will scroll directly onto Mother Brain so she can begin transitioning into her second phase. Although you can minimize the time the game spends scrolling the screen by being closer to Mother Brain right when the scrolling occurs, doing so does not save time as Mother Brain will always take approximately the same amount of time to transition regardless of the time spent scrolling the screen.		After MB1 has been defeated, the screen will scroll directly onto Mother Brain so she can begin transitioning into her second phase. Although you can minimize the time the game spends scrolling the screen by being closer to Mother Brain right when the scrolling occurs, doing so does not save time as Mother Brain will always take approximately the same amount of time to transition regardless of the time spent scrolling the screen.
		+
		+	{{#ev:youtube\|zA8N5MmPVnQ}}

	Categories that have an abundance of energy, such as [[100%]], can defeat MB1 in the manner below, which will reduce the travel time of Super Missiles, the lag during the sequence, and the likelihood of interference from turrets and Rinkas.		Categories that have an abundance of energy, such as [[100%]], can defeat MB1 in the manner below, which will reduce the travel time of Super Missiles, the lag during the sequence, and the likelihood of interference from turrets and Rinkas.

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 = See also =
 * [[Standup Glitch]]
 * [[Murder Beam]]

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 Before transitioning into her third phase, Mother Brain will, of course, unleash her rainbow beam upon Samus, and then will be attacked by the Super Metroid before she is able to fire another.
-If you are above a certain threshold after the first rainbow beam, Mother Brain will fire shots at you until you're below that line, possibly including additional rainbow beams. For Gravity Suit this threshold is 100, for Varia Suit it's 180, and for Power Suit it's 340. It's possible, though rare, for Mother Brain to kill Samus during these additional damage-down shots under certain conditions. The most common death scenario is when Mother Brain drops a bomb when Samus is between 101 and 120 health, then shoots a volley of two rings. The bomb hits for 40, then the rings hit for 20 each, then the bomb can double-hit with its explosion for 20 each.
+If you are above a certain threshold after the first rainbow beam, Mother Brain will fire shots at you until you're below that line, possibly including additional rainbow beams.
 {{#ev:youtube|Vihvlr6ccvE}}

@@ Line 263: / Line 263: @@
 Before transitioning into her third phase, Mother Brain will, of course, unleash her rainbow beam upon Samus, and then will be attacked by the Super Metroid before she is able to fire another.
-If you are above a certain threshold after the first rainbow beam, Mother Brain will fire shots at you until you're below that line, possibly including additional rainbow beams. For Gravity Suit this threshold is 100, for Varia Suit it's 180, and for Power Suit it's 340.
+If you are above a certain threshold after the first rainbow beam, Mother Brain will fire shots at you until you're below that line, possibly including additional rainbow beams. For Gravity Suit this threshold is 100, for Varia Suit it's 180, and for Power Suit it's 340. It's possible, though rare, for Mother Brain to kill Samus during these additional damage-down shots under certain conditions. The most common death scenario is when Mother Brain drops a bomb when Samus is between 101 and 120 health, then shoots a volley of two rings. The bomb hits for 40, then the rings hit for 20 each, then the bomb can double-hit with its explosion for 20 each.
 Interestingly, the speed of the cutscene - specifically, the length of time it takes for Mother Brain to crouch down during the Super Metroid's attack - is variable.

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 The reason why the resulting swifter cutscene happens is related to Mother Brain's head. How it shifts during the cutscene directly determines how long the cutscene takes.
-The "more forward" foot position seems to only happen when Mother Brain steps slowly backward before firing redbeam.
+The "more forward" foot position was theorized to occur when Mother Brain steps slowly backward before firing redbeam. Observations made in April 2022 by ShinyZeni and ProfessorSchool suggested that Mother Brain's behavior could be manipulated to force the "more forward" foot position. The required manipulation is performed during Mother Brain's second phase when her health is reduced below 25% and the redbeam ability is gained. For the manipulation to work, the damage that puts Mother Brain below 25% must occur as she is stepping forward. After taking this damage, she will step backwards. If the manipulation worked three things will occur:
-Below is a comparison of various [[Tool Assisted Speedruns|tool assisted speedruns]]' cutscenes to demonstrate the potential difference in speed.
+) Mother Brain will step backwards and her foot will be in the "more forward" placement. <br>
 {{#ev:youtube|VzVB7DvKpoo}}
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 The reason why Cpadolf's 100%, in particular, is so much faster than the others is because Samus is able to influence Mother Brain's head movement, independent of her prior foot placement. Saturn's GT Classic would have been able to do the same, but did not influence her as effectively, as perhaps it was not known at the time that it was possible to do so.
 = MB3 =

@@ Line 13: / Line 13: @@
 == General Knowledge ==
-Mother Brain has 3000 health.
+Mother Brain and the glass are only vulnerable to [[Missile|Missiles]] and [[Super Missile|Super Missiles]].
-Mother Brain is only vulnerable to [[Missile|Missiles]] and [[Super Missile|Super Missiles]].
+Mother Brain has 3000 health. Shots that strike the glass do not deplete her health and only damage the glass, while shots that strike her damage both.
-Mother Brain will not transition from her first phase into her second phase until the glass tank surrounding her has been completely removed, regardless of her remaining health.
+Partially breaking the glass to begin damaging her requires 6 shots while fully breaking the glass requires an additional 12 shots.
 Contact with Mother Brain deals 30 / 60 / 120 damage to [[Gravity Suit]] / [[Varia Suit]] / [[Power Suit]] Samus, respectively, and ignores invulnerability.
@@ Line 24: / Line 26: @@
 == Interactions ==
 If Samus is struck by a turret shot, it will produce a cloud that lingers in the air for around a second. This cloud can consume a Missile or Super Missile if one comes in contact with it, which is more reason to be careful when firing at MB1 in lower-percentage categories. There is a group of white pixels that will appear in the air as long as this cloud is present.

← Older revision		Revision as of 05:39, 26 March 2019
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	The energy drain from MB2's rainbow beam will take up to 15 frames longer to occur depending on how far away Samus is from the right wall when it makes contact with her.		The energy drain from MB2's rainbow beam will take up to 15 frames longer to occur depending on how far away Samus is from the right wall when it makes contact with her.
		+
		+	{{#ev:youtube\|AZl1qaaaxIQ}}

	MB2 will move forward frequently during the fight, and will move backward when her brain is struck. Even uncharged beam shots and normal bombs can force her back as long as they strike her brain.		MB2 will move forward frequently during the fight, and will move backward when her brain is struck. Even uncharged beam shots and normal bombs can force her back as long as they strike her brain.

← Older revision		Revision as of 17:50, 12 December 2018
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	If Samus is struck by a turret shot, it will produce a cloud that lingers in the air for around a second. This cloud can consume a Missile or Super Missile if one comes in contact with it, which is more reason to be careful when firing at MB1 in lower-percentage categories. There is a group of white pixels that will appear in the air as long as this cloud is present.		If Samus is struck by a turret shot, it will produce a cloud that lingers in the air for around a second. This cloud can consume a Missile or Super Missile if one comes in contact with it, which is more reason to be careful when firing at MB1 in lower-percentage categories. There is a group of white pixels that will appear in the air as long as this cloud is present.
		+
		+	{{#ev:youtube\|fxzBcjs4Cy0}}

	Although MB1's glass tank can be accessed and struck from the back through glitched means, it is not possible to break MB1's glass tank from the back. It will show that it has begun to crack, but never break open.		Although MB1's glass tank can be accessed and struck from the back through glitched means, it is not possible to break MB1's glass tank from the back. It will show that it has begun to crack, but never break open.