Metroid: Zero Mission (GameBoy Advance)
9% Run Boss FAQ (Normal Difficulty)
E-Mail: ShadowXOR@LoneShadow.com
FAQ (c) Copyright 2004 ShadowXOR
http://www.loneshadow.com/
Version 1.01

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Table of Contents
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1. Version History
2. Introduction
3. Bosses
 (a) Brinstar Worm
 (b) Spore Larva
 (c) Ridley
 (d) Kraid Worm 
 (e) Kraid
 (f) Mother Brain (Barriers)
 (g) Mother Brain (Herself)
 (h) Chozo Mirror Orb
 (i) Mecha-Ridley
4. Credits
5. Contact
6. Copyright Notice

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1. Version History
-------------------

Version 1.01 (02/24/04) - Corrected some grammatical mistakes and 
some of the sentence structure to make things more clear.  I also 
changed the Copyright Notice section to reflect the addition of a 
few more hosts.  You will also notice that the bosses are in a 
different order, as I found it to be the best order to fight them 
in.  Another addition was the list of the nine items required to 
beat the game.  This version is considered final and will not be 
updated unless someone e-mails me some great strategies, or I 
find a huge mistake in the FAQ.

Version 1.0 (02/20/04) - This is the first and hopefully last 
version of the FAQ.  All sections are complete.  Unless there are 
errors, or someone writes in with an extremely useful technique I 
have not found, there will be no future updates.

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2. Introduction
----------------

This FAQ is for those of you attempting a 9% run through 
Metroid: Zero Mission on normal difficulty.  It can be very 
frustrating at times, but overall it's a pretty fun experience.  
This FAQ will also be VERY useful to anyone trying to get 15% or 
below.  While it becomes SIGNIFICANTLY easier by getting even one 
extra percent, I wrote this with 9% in mind, the bare minimum.  
Even if you're not doing a low percentage run, the boss 
strategies can be very helpful, as I outline the best ways to 
beat them.  Don't bother to attempt it if you get frustrated 
easily or you are not willing to put in the effort, as it is VERY 
challenging!  These are the strategies I used to beat the game 
with 9% on normal, and I used absolutely NO saved states, or 
cheats of any kind.  For those of you who don't know what the 
bare minimum requirements are for a 9% run, I outline them below 
in the best order to acquire them:

 - Morph Ball
 - Missiles
 - Bombs
 - Varia Suit
 - Plasma Beam [Unknown Item - Crateria]
 - Power Grip
 - Ice Beam
 - Gravity Suit [Unknown Item - Ridley]
 - Space Jump [Unknown Item - Kraid]

If you think to yourself, "Wait, you just CAN'T skip X item!  How 
did he do that?" don't e-mail me about it.  I will not answer 
those questions.  My FAQ is a boss FAQ, not a walkthrough.  
Please check another FAQ for this information.

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3. Bosses
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(a) Brinstar Worm - Mini-Boss [Unofficial Name]

This mini-boss is VERY easy.  You can kill him the first time you 
encounter him.  He must be hit in the eye with three missiles to 
be defeated.  If you don't hit him every time you have the 
opportunity, he'll escape before you have the chance to kill him.  
That's O.K. because you'll cross his path again and again, but 
it's much easier to just end it now so that he's not in your way 
later on.  His head will bust through the roof, trapping you.  It 
will descend into the middle of the room, revealing his eye, 
which you should quickly shoot a missile into.  Next, he will 
close his eye and thrust downward.  Go into morph ball mode and 
dodge left or right.  As soon as he begins ascending, roll under 
him, stand up, and pop a missile in his eye when it opens again.  
Then he'll thrust downward at you one more time, so just repeat 
the strategy stated above.  And that's the end of him.  If you 
happen to miss that last shot, he'll begin shooting spikes off 
his body (which you can shoot to collect energy and missiles).  
After he is done with that, he'll give you one more split-second 
opportunity to hit his eye, but it's much shorter then the 
others.  Once he is defeated, move on without picking up the 
Charge Beam.

=================================================================

(b) Spore Larva - Mini-Boss [Unofficial Name]

This is another easy boss.  He has two sacks on his body that 
will intermittently shoot out a bunch of spores that fly in all 
directions.  They are easy to kill, and will provide you with 
energy and missiles.  There are plenty around so it's easy to 
survive.  There is also a Ripper floating around in a figure 
eight, but he doesn't do much damage at all.  To kill the boss, 
you'll have to freeze the Ripper and use him as a platform to 
shoot the tentacles holding the Spore Larva to the ceiling.  He 
has three tentacles on each side of his cocoon.  Freeze the 
Ripper as he is approaching the wall on either side and it should 
provide the extra height to give you a diagonal shot of that 
side's tentacles.  If you don't have a decent diagonal shot, just 
jump and shoot them.  If the Ripper is unfreezing before you're 
done destroying the tentacles on that side (his freeze time is 
fairly short) then just jump, aim down, and refreeze him.  Once 
all six tentacles have been destroyed, the Spore Larva will lose 
his hold on the ceiling and come crashing down.  Thus, the Spore 
Larva has been defeated.

=================================================================

(c) Ridley

Ridley is a serious push over.  At first he seems REALLY hard, 
but once you know his pattern, he's easier than your future 
battle with Kraid.  If you execute this right, you won't even be 
hit.  At the beginning, the two blocks closest to each door will 
be destroyed.  Ridley will come down and start firing a barrage 
of small fireballs at you.  Simply fire your beam straight at 
them and they will be destroyed.  Next, he'll fly a little higher 
up in the air and shoot some larger fireballs at you.  Simply 
jump under him.  He'll swoop down, and it will appear as if his 
feet will touch you, but they actually just overlap Samus without 
harming her.  As long as you stay under the foot that is closest 
to the direction he is going, you'll be fine.  As he floats back 
and forth, walk in unison with Ridley underneath that foot and 
you won't be hit.  Just don't straggle to far back or his tail 
will whip you.  Also, don't run too far forward or he'll grab you 
with his front claw, pull you into the air, and drain your energy 
while shooting small fireballs in your face.  Continually shoot 
missiles into his underside.  Those large fireballs you saw him 
fire earlier come in useful now, as he'll occasionally fire more 
of them, and they drop energy/missiles when destroyed.  The 
fireballs are conveniently shot in front of you most of the time 
so that you can shoot them, and then walk right into them to 
collect the energy/missiles that they leave behind.  Simply 
continue doing this and he'll go down soon enough.  Just keep 
pumping those missiles into his underside.  You can tell when he 
is almost defeated because he will begin to turn red.

=================================================================

(d) Kraid Worm - Mini-Boss [Unofficial Name]

So that no one gets confused, I'm calling it the Kraid Worm, 
because it is located in Kraid.  It has nothing to do with Kraid 
himself.  Luckily, this boss is also fairly easy.  Be sure and 
grab the Varia suit before fighting him though, it will make 
things considerably easier.  Not only will he damage you less, 
but if you fall in the acid, it won't harm you.  The worm will 
hide in the acid until his teeth/claws begin to move, indicating 
that he is about to attack.  Just stand on one of the lower 
blocks, and right before he lunges for you, jump onto the zip 
line.  You'll easily dodge him and be dropped onto the lower 
block on the other side.  Immediately pump all five of your 
missiles into his (painfully obvious) weak point.  Now that you 
have no missiles, jump onto the ledges where either of the doors 
are located.  He can't melee attack you from where you are, so he 
lunges upward and begins shooting projectiles at you.  Shoot the 
projectiles and collect the power-ups that appear.  Once you have 
replenished your energy and missiles, hop back out there and give 
it to him again.  Rinse and repeat.  If you fall in the acid, 
just hop back up, simple as that.  Occasionally he may cause the 
acid to rise.  If this happens, just jump to the highest block 
and you'll be safe.  But hopefully you have the Varia suit and 
won't even have to worry about it.  Keep it up and he'll be down 
in no time.

=================================================================

(e) Kraid

Kraid appears to be a little difficult at first, but once you get 
his pattern down, it's only a matter of time.  It only gets hard 
towards the end of the battle.  You'll start off on a decently 
sized platform connected to the door.  He will begin throwing his 
boomerang-like claws at you in pairs of two.  You can, and must, 
destroy these to collect additional energy and missiles 
throughout the battle.  Occasionally he'll throw an odd swipe at 
you with his hand.  It's easy to dodge, just don't get too close 
to him.  You have to shoot his eye, causing him to open his 
mouth.  Once his mouth is open, he is vulnerable.  Just pop your 
remaining four missiles in his mouth to do some damage.  Now 
dodge his attacks while collecting energy and missiles from his 
claws.  Once you have done a certain amount of damage, the part 
of the platform connected to the door will break off.  He'll 
start shooting spiked platforms out of his stomach and into the 
wall.  They will disappear after a few seconds.  You might want 
to jump down, and go up every time the spiked platforms give you 
the opportunity.  It is easier to collect energy and missiles 
down there.  If you stay up top, his hand swipe attack takes up 
nearly the entire length of the platform, which can make things 
very difficult.  Once you have done some more damage to him, the 
small platform will also be destroyed, leaving you with nothing 
but his spiked platforms to jump on.  Use them as stairs, jumping 
on them as they come out, while being sure not to get hit by 
them.  Your morph ball can help you dodge them if needed.  
Continue collecting missiles at the bottom, and then jumping up 
his spiked platforms as they shoot out to get to the top.  Then 
unload all of your missiles into him.  Continue doing this until 
the fall of Kraid.  Once he is defeated, continue on to the next 
boss, who will probably make many of you quit your 9% run 
altogether.

=================================================================

(f) Mother Brain (Barriers)

I have separated Mother Brain and her barriers into two distinct 
sections.  I did this because the barriers alone require their 
own strategy, and they will take a long time to get through 
depending on your skill level.  There are two things you're going 
to have to watch for.  Rinkas (the small orange rings that home 
in on you) will be your source of energy and missiles.  If they 
hit you, they'll do a small amount of damage.  Your one other 
problem is the array of guns at the top that rotate while 
shooting at random intervals.  You only have five missiles at 
your disposal if you're on a 9% run, and unfortunately, each 
barrier takes seven missiles to destroy.  For the first barrier, 
stand on the middle of the platform the door is located on.  
You're going to have to destroy a Rinka directly in front of you 
(it must drop a missile pack), launch all five of your missiles 
into the barrier, grab the missile pack, and then unload those, 
barely destroying it in time.  It can be useful to freeze the 
Rinkas so that they don't hit you while you're trying to finish 
off a barrier.  The barriers regenerate quickly, so if you're not 
fast enough you'll have to drop below and kill some Rinkas to 
collect more missiles.  It's easier to collect power-ups at the 
bottom because the guns can't fire on you.  Thankfully, Nintendo 
is merciful, so you can go save after destroying each barrier, 
and the barrier will remain destroyed.  Be sure and fill your 
energy and missiles before saving.  The second barrier is going 
to be a bit harder because there are even more guns firing at 
you.  The main problem you'll most likely have here is that right 
when you get your missile pack set up, a gun will usually hit 
you, knocking you into it, forcing you to collect it.  That's not 
what we want, considering we need an extra missile pack ready to 
collect after firing our first five missiles.  I prefer to stand 
between the middle and right side of the platform.  This doesn't 
put you directly in the way of all three guns as the middle does, 
and you have plenty of room to destroy Rinkas in front of you.  
Just use the same strategy as above, setting up the missile pack 
in front of you and launching your barrage of missiles.  Once 
it's destroyed, go back, fill up on energy/missiles, and save.  
The third barrier takes the challenge up another notch.  This 
time the main platform is separated into three pieces.  I prefer 
to stand on the far right piece, while repeating the same 
strategy as stated above.  It will take some time, but you'll get 
it.  After destroying it, once again fill up on energy/missiles 
and save.  The fourth barrier is by far the worst.  There are 
only two blocks, and the area below them is full of lava.  If you 
fall, be sure and jump back up immediately.  It can be 
frustrating when you jump up, grab onto a platform, and then get 
hit by a Rinka, knocking you back into the lava.  Just keep at 
it!  Stay on the right platform and use the same strategies I 
have outlined above.  Once you've taken it down, go back for one 
more energy/missile fill and a save.  Now jump back through all 
four broken barriers to encounter Mother Brain herself.

=================================================================

(g) Mother Brain (Herself)

I consider this the hardest boss fight in the game, second only 
to Mecha-Ridley.  Big thanks go out to Kaleb.G for finding the 
best strategy to beat her.  If you aren't much of a skilled 
gamer, then this will seem impossible, but then again, I doubt 
many unskilled gamers would be attempting a 9% run.  First, 
you're going to have to destroy her protective casing.  Just jump 
back and forth between the two blocks, shooting her casing with 
missiles.  There are two guns and two Rinkas to worry about.  The 
guns are constantly firing and can be pretty annoying.  You just 
have to do your best to dodge them, as not much else can be done.  
However, you can freeze the Rinkas to give you a small window of 
time where you have less to worry about.  Once the casing is 
destroyed, you're going to have one more thing to worry about.  
Mother Brain will shortly begin shooting large beams of energy at 
you.  When her eye is closed, she is preparing to attack.  She 
will flash briefly before opening her eye, and then she will 
release her energy beam.  Luckily she doesn't fire them too 
often, but they still make it far too difficult to stay on top of 
the blocks.  You'll need to hang off of the right edge of the 
left block with your Power Grip.  Neither of the guns can hit you 
from here, and you can shoot both of the Rinkas with diagonal 
shots once they come within close range of you.  This makes it 
easy to replenish your energy/missiles.  It can be helpful to 
jump back and forth between the two ledges to collect the power-
ups that the Rinkas leave just out of reach.  Once your missiles 
are replenished you'll have to jump onto the upper blocks, dodge 
her energy beam, crouch, and unload your missiles into her eye.  
Just as I did for Mother Brain's casing, I like to freeze the 
Rinkas before attacking so that I don't have so much to worry 
about, and so that I can kill them for power-ups afterward.  Be 
sure not to fall below the level of the blocks, otherwise she 
will close her eye again for another beam attack.  This is O.K. 
when you're going down to collect energy and missiles, but you 
don't want that happening when you're trying to attack her.  
Occasionally she will fire her energy beam while you are just 
hanging there collecting energy and missiles.  If she begins to 
start flashing, drop into the lava to dodge her attack.  You will 
take much less damage falling into the lava and jumping back up 
then you will if you are hit by her attack, which will most 
likely knock you into a Rinka or bullet, causing even more 
damage.  Just continue this strategy of dropping down to build 
up, then jumping up to attack.  You'll have her down after MUCH 
practice and a little luck.

=================================================================

(h) Chozo Mirror Orb - Mini-Boss [Unofficial Name]

The only thing that makes this boss even remotely hard is the 
fact that you can only be damaged by it twice, no matter which 
attack hits you, before dying.  Other than that, it's pretty 
easy.  You only need to hit it four times to defeat it.  At first 
the orb will just sit there, showing suitless Samus in it.  If 
you shoot it while she is shown, it will damage you.  You can 
shoot even the weakest charges at the mirror of yourself and it 
will still do full damage to you.  However, only fully charged 
shots will harm the boss.  Wait until the orb shows a blue 
glowing symbol in it, and then shoot it.  Now the Chozo picture 
on the wall will emit a ghost image of itself that will fly 
around carrying the orb.  Occasionally it will stop and shoot a 
bolt of lightning at you from above, which you obviously must 
dodge.  Just wait for the blue glowing symbol to appear and shoot 
it.  Now the ghost will begin to move faster around the room.  It 
will also shoot the lightning bolts more frequently.  Shoot the 
blue symbol when it appears again.  Be careful, the symbol may 
occasionally disappear quickly.  This will cause you to shoot 
your mirror image, damaging yourself.  After having shot the 
symbol for the third time, the speed of lightning and movement 
will once again increase.  In addition, when any lightning bolt 
strikes the ground now, it will split into two bolts of lightning 
that travel in opposite directions along the floor.  Thus, you 
must dodge it as it comes down, and then jump over it as it 
shoots along the floor towards you to completely avoid it.  Don't 
stay to close to the wall either, because if you jump over it, 
then it will continue straight up the wall.  Just shoot the blue 
symbol one more time to defeat the boss.  You'll then receive 
your fully powered suit, which supports the unknown items: Plasma 
Beam, Gravity Suit, and Space Jump.  It may take a few tries, but 
this boss shouldn't be too much trouble.

=================================================================

(i) Mecha-Ridley

This is it; the culmination of your so-called Zero Mission.  All 
of Mecha-Ridley's attacks do a lot of damage, so you can't afford 
to be hit often.  Avoid his claw attack at all costs, as it is 
extremely powerful.  The only spot that you will not be hit by 
the claw is by crouching or morph balling in the lower left hand 
corner.  He will begin by attacking you with his claw.  Just hide 
in the lower left to avoid it.  When he pulls his claw back, jump 
and shoot missiles at the encased glowing orb in his chest.  He 
will do random attacks at random times, so you will always have 
to be paying complete attention.  Occasionally he'll shoot a 
barrage of fireballs at the ground and ceiling.  To avoid them, 
you must space jump in between the two streams.  Every now and 
then he'll fall back and shoot three missiles at you.  You must 
shoot these to collect energy and missiles.  Sometimes they won't 
give you anything at all, so let's hope luck is on your side.  
Just be sure you don't land on his claw on the way down from 
grabbing the power-ups.  Occasionally his claw will block your 
shot, or the missiles will be at the wrong angle to shoot, and 
they'll hit you.  The missiles take away forty points of energy, 
and they can knock you into his claw.  This will mean instant 
death due to the damage from the missile AND the claw.  If you 
are hit by a missile and he is following up with his claw, 
quickly duck.  Hopefully, this will save you from death.  Once 
you break the casing around his weak spot, he will begin firing 
lasers in random directions, and he'll stop using the fireball 
attack.  This is unfortunate because the fireball attack is easy 
to avoid, but the lasers usually aren't.  Hopefully he isn't 
shooting the lasers at you, but if he is, then just jump over 
them.  If he claws at you when you try and dodge the laser, it's 
over for you.  The huge problem with Mecha-Ridley is basically 
EVERYTHING he does is random.  He randomly uses random weapons in 
conjunction with other random variables.  This can cause serious 
issues.  Sometimes he'll fire a laser, missiles, and a claw swipe 
all at once, which will mean unavoidable death.  He may, or may 
not do multiple attacks of the same kind, all in a row.  If 
you're lucky, he'll continuously fire his lasers at the roof, 
giving you a better chance at defeating him.  Just continue 
dodging his attacks and firing away at his weak point.  As his 
energy dwindles, he will give you smaller and smaller openings to 
hit him.  He'll also begin blocking more often with his claw.  
Don't waste missiles; wait for his weak point to show up and hit 
it.  Just think that for every few missiles you waste, you're 
going to have to dodge more attacks to collect more missiles.  
Hopefully with this info, a little luck, and a lot of skill, 
you'll take Mecha-Ridley down.  And after you take him down, good 
luck on the escape!  You'll need it. :)

=================================================================

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4. Credits
-----------

GameFAQs (http://www.gamefaqs.com/) - Thanks to GameFAQs for 
having such a great site, and hosting my FAQ.

Nintendo (http://www.nintendo.com/) - Thanks to Nintendo for 
creating this great game.

Kaleb.G (http://www.kalebgrace.com/) - Thanks to Kaleb for 
letting me use his computer all the time, correcting some of my 
grammar, and for finding out that you can save after destroying 
Mother Brain's barriers.  He also provided that GREAT strategy 
for defeating Mother Brain that is invaluable on a 9% run!

Samus.co.uk (http://www.samus.co.uk/) - Thanks for having such a 
great forum to discuss all the latest Zero Mission developments, 
as well as some great information regarding the entire series.

Myself (http://www.loneshadow.com/) - Thanks to me for not being 
so lazy and actually getting this FAQ done.

Lyzz - Thanks for being supportive through anything and 
everything.  If I wasn't in the good moods she puts me in, I 
never would have written this FAQ.

=================================================================

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5. Contact
-----------

Website - http://www.loneshadow.com/
E-Mail - ShadowXOR@LoneShadow.com
AIM - ShadowXOR
Name - Cody S.

Please feel free to contact me with any mistakes, questions, 
comments, and thanks, as long as they regard my FAQ.  You will be 
credited for any information you provide.  DO NOT ask me for help 
through areas in Metroid: Zero Mission that are unrelated to my 
FAQ, such as how to get an energy tank, etc.  Other than this, 
you can e-mail me about just about anything else, including my 
website.  DO NOT request to host my FAQ; your request WILL be 
denied.

=================================================================

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6. Copyright Notice
--------------------

This FAQ is (c) Copyright ShadowXOR 2004.  All rights reserved.  
This FAQ is not to be hosted on any sites that I have not given 
permission to.  Once again, DO NOT request to host my FAQ; your 
request WILL be denied.  

My FAQ should ONLY be hosted on the following websites:

GameFAQs - [http://www.gamefaqs.com/]
GameSpot - [http://www.gamespot.com/]
LoneShadow.com - [http://www.loneshadow.com/]
Samus.co.uk - [http://www.samus.co.uk/]

If you see this FAQ hosted anywhere else, please contact me.