Difference between revisions of "10 Missile Zebetite Kill"

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m (consequences section deleted, since 13% xCharge has been done now; 14% cats moved to 14% page)
(update with new setups. maybe old setups should be kept here, but I think the new ones are just better)
 
(One intermediate revision by the same user not shown)
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Therefore, by carefully manipulating the screen position, it is possible to:  (1) Fire a missile while the Zebetite is off-screen, (2) move the Zebetite on screen for fewer than five frames while the missile hits; (3) repeat with remaining missiles.
 
Therefore, by carefully manipulating the screen position, it is possible to:  (1) Fire a missile while the Zebetite is off-screen, (2) move the Zebetite on screen for fewer than five frames while the missile hits; (3) repeat with remaining missiles.
  
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==Current best RTA setup==
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==Current best RTA setups==
  
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The current best RTA setup is as follows:
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The current best RTA setups on NTSC and PAL are very similar. They involve taking a hit by a Rinka (to avoid the turrets sniping during the setup), performing a quick mid-air morph and unmorph (to be in unmorphed state before hitting the ceiling: You cannot aim down before the ceiling), downbacking onto the Zebetite platform (making sure to downback into the wall to keep the positioning normalized), and then turn-around spin jumping to the left.
  
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{{#ev:vimeo|700985130}}
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The final parts of the setup are different on NTSC and PAL, in order to get to the correct screen position. See the below videos to get the precise steps.
  
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This is on PAL. A slightly modified setup works on NTSC; this setup will not work.
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After the setup, the process is again the same:  When crouched on the ground facing right, turn left and fire a missile, jump in the air, and turn right in about a 3 frame window. Then jump in the air, turn left, and turn back right on the ground to get back to where you started. Repeat.
  
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The setup is as follows:
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===NTSC Setup===
  
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(1) Initially moonwalk left to scroll the screen as much as possible. I am unsure how much this is required, but it does move the left turret off screen which helps.
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{{#ev:vimeo|789322973}}
  
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(2) Make sure the Rinkas are in a favorable position. Shooting the bottom then the top as quickly as possible works.
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===PAL Setup===
  
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(3) Run into bottom Rinka just before it hits you.
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{{#ev:vimeo|789196306}}
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(4) Quickly perform a full jump into the ceiling. Keep holding right as you go under ceiling, but release right before landing (so your position is normalized).
 
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(5) Buffer jump back left, while you still have i-frames (i.e., still be holding jump).
 
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(6) Do a tiny jump and turn back right. The turn-around must be done in the air. The jump should be tiny to avoid the turret.
 
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(7) Crouch and shoot the bottom Rinka.
 
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(8) Turn around, shoot a missile, jump, and turn-around in the air. The air turn-around is a 4 frame window. This is the hardest part, as the turret shots can snipe your missiles. If you suspect they will, then turn back right and get the Rinkas lined up (shooting bottom then top quickly) and try again.
 
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(9) Moonwalk the camera back into position. Do not moonwalk to far left, since then the left turret can hit you. Repeat steps as needed.
 
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Note getting hit by the Rinka takes 220 damage, if going for the double kill (and you have Varia but not Gravity). This means you either need two Energy Tanks for this setup, or you need to use some reserve health. Getting hit by the Rinka is not actually necessary, so you could skip it. But then on the jump over and back, you can get hit by turret shots. So it is more dangerous to skip it.
 
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It should be noted that getting hit by the Rinka is not actually necessary for this strat. With the Rinkas well-positioned, you can simply jump over them and then jump back. If you do this, there is a chance of getting sniped by a turret shot. That's the purpose of the i-frames. If you want to run 1+2 Energy+Reserve Tanks, then you could do the first couple of missiles without taking damage and then switch over.
 
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With this setup, if you get hit by a Rinka or a turret shot in the initial stages (e.g., after you have moonwalked the camera but before jumping), the setup may not die. So you could choose to continue.
 
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However, if you mess up the first jump, you will be far to the right. It will be difficult to get back left without accidentally moving the zebetite on screen. It is possible by carefully moonwalking left and jumping over the pit cautiously. This is difficult to do with the Rinkas shooting at you, so this will usually result in failure.
 
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==Old RTA setup==
 
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An old setup for this is as follows:
 
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{{#ev:vimeo|652937875}}
 
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This is on NTSC. A slightly modified setup works on PAL; this setup will not work.
 
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This involves the following steps:
 
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(1) Initially setup the camera to be as far away from the Zebetite as possible.
 
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(2) Moonwalk back to the correct pixel.
 
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(3) Moonwalk back one additional frame:  If Samus does not move, good; if Samus moves, then walk (or roll) back right and start over. The goal is to get onto the back half of this pixel, so in step (2) when nearing the pixel you should attempt very small moonwalk movements.
 
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(4) While facing right, crouch, turn-around, jump, and turn-around in the air.
 
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(5) Repeat step (4) two more times.
 
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(6) While facing right, crouch, turn around.
 
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(7) Fire a missile, jump, and turn-around:  There is a five frame window for this turn-around. If successful, you should hear the Zebetite get hit.
 
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(8) Repeat steps (1) - (7) for all remaining missiles.
 
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Since this is about very precise camera manipulation, any other movement (other than vertical movement, like jumping or morphing, or movement you can undo, like turning around) will mess up the setup. If the Zebetite has not been moved on screen, you can move back to the right and start over at step (1).
 
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In particular, getting hit (by Rinkas or turret shots) will very frequently jolt the camera left and back very quickly:  This will usually move the Zebetite on screen briefly, and thus will usually ruin the attempt. Thus, this entire very slow method has to be done basically without getting hit by any Rinkas or turret shots.
 
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It should be noted there is a faster setup, without the dancing in steps (4)-(5). It requires moonwalking back to the correct pixel (a different pixel than what one ends up on after dancing). The issue is that you must be on the front half of the pixel, which is harder to recognize. The above method was developed to maximize the frame window for firing the missile while also allowing for all cues to be entirely visual.
 
  
 
==Double kill==
 
==Double kill==
  
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The above setup works on all Zebetites.
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The above setup only works on the second and fourth Zebetite.
  
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However, the second and third Zebetite can be double killed. This is accomplished by hitting the second Zebetite after it has died, but before it has exploded. What you hit the Zebetite with can be any projectile:  In particular, it can be a beamshot.
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Luckily, the second and third Zebetite can be double killed. This is accomplished by hitting the second Zebetite after it has died, but before it has exploded. What you hit the Zebetite with can be any projectile:  In particular, it can be a beamshot.
  
 
Thus, while killing the second Zebetite, you should repeat the setup for an eleventh shot of a beamshot. This will then kill both Zebetite 2 and 3.
 
Thus, while killing the second Zebetite, you should repeat the setup for an eleventh shot of a beamshot. This will then kill both Zebetite 2 and 3.
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==First and last shot of the kill==
 
==First and last shot of the kill==
  
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In theory, the first and last shot would not need the full setup.
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In theory, the first and last shot do not need the full setup.
 +
 
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For the first shot, it doesn't matter if the Zebetite is on screen beforehand. Thus, in theory, one can fire the missile with it on screen, and then quickly move it off screen. With the new setup, this doesn't seem like it would be particularly helpful.
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For the last shot, it doesn't matter if the Zebetite is on screen afterwards. Thus, one can fire the shot with it off screen, and then just run to put it on screen as the shot would hit.
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==Applications==
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The main use of this kill is that it makes [[13% xCharge]] possible, i.e., this was the last step to solve 13% RTA.
  
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For the first shot, it doesn't matter if the Zebetite is on screen beforehand. Thus, in theory, one can fire the missile with it on screen, and then quickly move it off screen. A setup would have to be developed.
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It is also used in a number of 14% categories:  Specifically, those categories that avoid [[L+R Walljumping]] and do not collect Ice, cannot shinespark, and do not underflow. This leaves [[14% xGravity]], [[14% xBoots]], [[14% xGrapple]], [[14% xSpring]], [[14% GravPb]], and [[14% Gravboots]], currently.
  
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For the last shot, it doesn't matter if the Zebetite is on screen afterwards. Thus, in theory, one can fire the shot with it off screen, and then just run to put it on screen as the shot would hit. It was attempted to find a good setup for this with a beamshot (for the double kill), and it seemed to fail more often than the complete setup. However, this could simply be due to improper timing.
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This also simplifies analysis of low% categories, in this and rom hacks that do not significantly modify Mother Brain. Specifically, Mother Brain 1 needs 20 ammo, so 10/10 ammo works. It being possible to defeat the Zebetites with only 10 Missiles means that no special consideration needs to be given to the Zebetites. This means if you are thinking about something like low% RBO or low% map completion, you can ignore the Zebetites.

Latest revision as of 18:22, 15 January 2023

It is possible to kill all Zebetites except the first using precisely 10 missiles.

Zebetites have exactly 1000 health, and missiles deal 100 damage. Usually, Zebetites gain health for every frame they are on screen. Thus, one would initially expect this is impossible: Even if the Zebetites are manipulated to be on screen for as little as possible, they will still be on screen for some finite amount of time. However, Zebetites do not gain health for 5 frames after damage has been dealt. Thus, if a Zebetite is moved on screen for fewer than 5 frames, its health will never increase.

Therefore, by carefully manipulating the screen position, it is possible to: (1) Fire a missile while the Zebetite is off-screen, (2) move the Zebetite on screen for fewer than five frames while the missile hits; (3) repeat with remaining missiles.

Current best RTA setups

The current best RTA setups on NTSC and PAL are very similar. They involve taking a hit by a Rinka (to avoid the turrets sniping during the setup), performing a quick mid-air morph and unmorph (to be in unmorphed state before hitting the ceiling: You cannot aim down before the ceiling), downbacking onto the Zebetite platform (making sure to downback into the wall to keep the positioning normalized), and then turn-around spin jumping to the left.

The final parts of the setup are different on NTSC and PAL, in order to get to the correct screen position. See the below videos to get the precise steps.

After the setup, the process is again the same: When crouched on the ground facing right, turn left and fire a missile, jump in the air, and turn right in about a 3 frame window. Then jump in the air, turn left, and turn back right on the ground to get back to where you started. Repeat.

NTSC Setup

PAL Setup

Double kill

The above setup only works on the second and fourth Zebetite.

Luckily, the second and third Zebetite can be double killed. This is accomplished by hitting the second Zebetite after it has died, but before it has exploded. What you hit the Zebetite with can be any projectile: In particular, it can be a beamshot.

Thus, while killing the second Zebetite, you should repeat the setup for an eleventh shot of a beamshot. This will then kill both Zebetite 2 and 3.

First Zebetite

The first Zebetite cannot be moved off screen, so cannot be killed in 10 missiles.

First and last shot of the kill

In theory, the first and last shot do not need the full setup.

For the first shot, it doesn't matter if the Zebetite is on screen beforehand. Thus, in theory, one can fire the missile with it on screen, and then quickly move it off screen. With the new setup, this doesn't seem like it would be particularly helpful.

For the last shot, it doesn't matter if the Zebetite is on screen afterwards. Thus, one can fire the shot with it off screen, and then just run to put it on screen as the shot would hit.

Applications

The main use of this kill is that it makes 13% xCharge possible, i.e., this was the last step to solve 13% RTA.

It is also used in a number of 14% categories: Specifically, those categories that avoid L+R Walljumping and do not collect Ice, cannot shinespark, and do not underflow. This leaves 14% xGravity, 14% xBoots, 14% xGrapple, 14% xSpring, 14% GravPb, and 14% Gravboots, currently.

This also simplifies analysis of low% categories, in this and rom hacks that do not significantly modify Mother Brain. Specifically, Mother Brain 1 needs 20 ammo, so 10/10 ammo works. It being possible to defeat the Zebetites with only 10 Missiles means that no special consideration needs to be given to the Zebetites. This means if you are thinking about something like low% RBO or low% map completion, you can ignore the Zebetites.

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