Difference between revisions of "Mother Brain Room"

Revision as of 08:28, 24 November 2018

Room state 1 & 2

Room state 3

Zebetite Glitch

The Zebetite glitch, also known as "Zebetite skip" (typically shortened to "Zeb skip"), allows for bypassing the Zebetites preceding Mother Brain. By passing through the first Zebetite (without destroying it), it causes all remaining Zebetites to not spawn. This saves over a minute in categories where minimal ammo is acquired, conserving both ammo and potentially health compared to trying to bust through the Zebetites.

The Zebetite glitch can be performed with either Ice Beam, Speed Booster, or (if out of bounds is permitted) X-Ray Scope.

Ice Beam

This version of the Zebetite glitch is by far the easiest to execute, and is slightly faster than the other versions.

• Upon entering the room, jump and land next to the first Zebetite
• Crouch while using angle down to aim at the spawn location of the Rinka that spawns beneath the Zebetite
• Freeze the Rinka once it spawns beneath you (before it moves)
• Spinjump through the Zebetite once you have gained invulnerability (whether it be from the Zebetite itself, a Rinka, or a turret shot - invulnerability is required to pass through)

If executed correctly, you should pass through the first Zebetite before your invulnerability wears off.

Ice Beam (Low%)

If you do not have Wave Beam, such as in 14% Ice, freezing the Rinka below the Zebetite is a bit trickier. The main difference is that you will need to fire directly up at the Rinka from below its location before attempting to spin through the Zebetite.

• Upon entering the room, run directly left under the first Zebetite
• Press against the wall and aim directly up
• Freeze the Rinka once it spawns above you
• Jump up next to the Zebetite
• Spinjump through the Zebetite once you have gained invulnerability

You can effectively combine steps four and five by landing on the Rinka from a spinjump from the floor. Being struck by the Zebetite will not deal any damage, which is helpful for lower-percentage categories.

Ice Beam (Screw Attack)

If you have Screw Attack enabled, such as in 100%, GT Classic, and Reverse Boss Order, it will affect how you can perform the Zebetite skip. Because spinjumping with Screw Attack equipped will reset your invulnerability, passing through the Zebetite by freezing a Rinka without spinjumping is only possible by performing one of the two methods below.

Downbacking

• Upon entering the room, continue to run forward and run off while holding forward until you have landed on the floor
• Jump up into the Rinka above (should be able to do this immediately upon landing)
• Perform a downback after being struck by the Rinka
• As you are performing the downback, freeze the Rinka once it spawns beneath you
• Jump through the Zebetite

It is important to remember that for step four, you continue to hold the inputs for the downback until you have landed, so that you become partially clipped into the Zebetite, so that you can perform a normal (non-spinjump) jump through the Zebetite to pass through.

Without Downbacking

• Upon entering the room, continue to run forward and run off while holding forward until you have landed on the floor
• Jump up into the Rinka above
• Move left so that you are right next to the Zebetite as you are falling
• Freeze the Rinka right before you would land next to the Zebetite
• Jump through the Zebetite

The timing of the shot is frame-perfect and is based upon when you would land next to the Zebetite, so this method is not recommended, it is simply possible.

Speed Booster

This version of the Zebetite glitch is required in a 14% Speed run. It can also be performed to avoid having to perform one of the "with Screw Attack" Ice Beam methods listed previously; however, due to the ease of the standard Ice Beam version, usually people simply disable Screw Attack before performing the standard Ice Beam version rather than attempt this version.

• Short charge a shinespark from the bottom right wall of the Rinka Shaft
• Run directly left under the first Zebetite (with the shinespark charged)
• While holding angle up, facing left, and pressed against the wall, activate the shinespark
• As the shinespark's crash animation ends, hold down on the directional pad while mashing the jump button (otherwise, you will become stuck in the bottom portion of the Zebetite)
• Once fully inside the Zebetite, move left to escape (before your invulnerability runs out, which would allow the Zebetite to potentially eject you towards the right instead of the left)

X-Ray Scope

This version of the Zebetite glitch is required in a 12% run.

Escape

When you finish the Mother Brain fight, you'll see the message on-screen "Time bomb set! Escape immediately!" In most categories you'll have Hi-Jump Boots, so if you do a full jump along the left wall when you see the first "I" in "immediately" come on screen, you should be able to hold left and leave the room while the timer still reads 03'00"00. Hold Angle Down as you leave the room so you can shoot the first set of barriers as soon as the next room loads.

See also

• Individual rooms
• Mother Brain

External links

• TASVideos description