Here is a complete guide for Mega Man Xtreme 2. Choose the tab you want in order to view its content.

Release Date:
Japan: 2001
USA: 2001
Europe: 2001

Developer:
Capcom

Systems:
Game Boy Color

Genre:
Action



Intro:

Continuing the action on the Game Boy Color, Mega Man Xtreme 2 brings back the action that Xtreme had, as well as new features and a unique storyline for X and Zero. Unlike the previous title, you'll be able to play as either X or Zero for the entire game, utilizing new parts, weapons and techniques to defeat the Maverick threat.

Game Specs:
You'll take control of X or Zero on their quest to find the Mavericks responsible for the loss of all the worker Reploids. Along the way you'll have to battle through eight familiar stages, each reconstructed ones from past battles. Iris will pipe in often to inform you of the current situation. This game has two modes, one for X and one for Zero, as well as a third Extreme mode, only accessible once you'll played through the game with X and Zero. You'll have to battle your way past the eight resurrected Mavericks before confronting the new menace, in the form of two new Mavericks, bent on fulfilling their masters wishes, and both waiting eagerly for their chance to defeat X and Zero. Behind them is the answer to the reason for their stealing of Reploid DNA Souls, as well as their master, awaiting the final battle...

 

 
Story:
Some time between the events occurring in the main series, the Maverick Hunters have hired a new temporary recruit, a familiar Repliforce member known as Iris. Before the events of Mega Man X4, Iris joined up with the Hunters for her first round of field experience, and she couldn't have picked a better time for that. During a routine check of the Research Laboratory on a remote island, the Hunters have discovered unusual events occurring there. It appears that many of the worker Reploids have shut down for no apparent reason. The island is become a desolate, dead place with all the Reploids ceasing to function, so X and Zero are dispatched to investigate. On their arrival, they discover that the readouts were correct, all the Reploids have shut down and are all lifeless, empty shells. It almost seems as though their memory banks were sucked out of them. They soon discover that many of the Reploids have indeed lost their memories, or 'DNA' Souls. Many of them had been replaced with the Maverick Virus, so it seemed for sure that the Mavericks were behind this deed. Not really knowing for sure what they're up against, X and Zero head deeper into the heart of the island to find the source of the trouble, and namely the Mavericks behind it. Along the way, Iris will help guide them through the mazes of laboratories and facilities, as X and Zero will need all the help they can get to get to the source of the problem.
Rockman X2: Soul Eraser (GBC) Front Cover


Mega Man Xtreme 2 (GBC) Front Cover

Mode Explanation:
There are four modes in Mega Man Xtreme 2. The first two modes go hand in hand. There is X Mode and Zero Mode. In X Mode, you battle (as X) against Neon Tiger, Launch Octopus, Volt Catfish, and Flame Mammoth. In Zero Mode, you battle (as Zero) against Overdrive Ostrich, Wire Sponge, Tunnel Rhino, and Blast Hornet. These two are combined in Xtreme Mode, where all 8 bosses are present and the player can switch between X and Zero freely during stages. After beating Xtreme Mode, a special Boss Attack mode becomes available, where the player can battle against bosses from both this and the first Xtreme game using all the weapons available to them in this game. For the purposes of this walkthrough, I'll assume Xtreme Mode is being used.

-There are three separate modes in this game, X's Mode, Zero's Mode and Extreme mode. Extreme mode contains X's and Zero's modes.

-If you start the game with X, once you beat his mode, you'll then move on to Zero's mode. Once you beat Zero's mode you'll then have access to Extreme mode and vice versa.

-If you beat the game first in X's mode, Zero will get the four techniques from X's bosses at the start of the game, and vice versa.

-Once you beat the game on Extreme mode, you'll gain access to the secret Boss Attack mode, where you can choose to fight all eight bosses from either this game or the ones from Mega Man Xtreme. You'll have all the special weapons and techniques, but no armor upgrades or sub tanks. You'll also have available all the special upgrade parts. Once you start, go in the capsule on the left to face the bosses from Xtreme 1, or in the right capsule to face the bosses from Xtreme 2. Remember that you can switch between X and Zero at any time

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Mega Man X:
X returns to action, this time to investigate the mysterious mass malfunction of Reploids on the Reploid Research Island, and to discover who is stealing the DNA Souls from the Reploids. Along with his pal Zero, X will have to battle restored Mavericks from his past, as well as the new Maverick leaders commanding the operation. Along the way, X will be receiving assistance from Zero, Iris and Dr. Light to help him complete this new and challenging mission.

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Zero:
Along with X, Zero is also involved in the investigation of Laguz Island, teaming up with X to help restore the DNA Souls to the damaged reploids and to find and retire the Mavericks responsible. This time Zero will have to face four Mavericks from X's past, as well as one of the mysterious Maverick leaders, but with his Beam Saber (a.k.a Z-Saber), X, Iris and Dr. Light's help, he can be almost guaranteed success in his part of this mission.

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Dr Light:
Dr. Light will be waiting for X and Zero in the special hidden upgrade capsules, where once found he'll give X and Zero new enhancements for their armor to help them succeed in battle. As well as giving X the normal upgrades, Dr. Light will also enhance Zero's capabilities for battle.

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Iris:
As her first mission with the Maverick Hunters, Iris takes leave from the Repliforce to assist X and Zero in their mission on Laguz Island. She'll play an important role by providing them with useful information and hints to further their progress, as well as building new upgrade parts with the DNA Souls X and Zero collect throughout the island.

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The Soul Eraser - Gareth:
Gareth, a 'Soul Eraser,' is one of the two Mavericks leading the DNA Soul operation. He first pretends to be a destroyer of evil Mavericks, but X and Zero see right through his disguise for what he really is. Hiding away in the Reploid Research Laboratory, he waits there for a final showdown with Zero, but his arrogance and oversized ego will be his downfall and Zero's advantage.

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Berkana:
Berkana is the second Maverick in charge of the DNA Soul operation. As the first female-type Maverick, Berkana believes that she can succeed where so many other Mavericks have failed, by finally defeating X. As well as taunting X and Zero throughout their journey on the island, she waits in the Reploid Research Laboratory for a final showdown with X, eagerly awaiting her chance to defeat him once and for all.

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Sigma:
As always, Sigma is behind the entire DNA Soul operation, giving Berkana and Gareth command of the island. Sigma's reason for stealing the DNA Souls is not completely known, but it seemed that he was trying to utilize the Souls and Reploid's bodies to create stronger Mavericks than ever before, to then launch a huge campaign against Earth from Laguz Island. Hiding away in the core of the operation, the Reploid Research Laboratory, Sigma watches from there X and Zero moving through the island, but he's certain that Berkana and Gareth will fail to stop them reaching him, so he's prepared a new battle body just in case...

 

Maverick Skull:

mmxb.gifGuide: This first boss will appear once you reach the end of the first stage. It'll take up most of the screen so you won't have much room to move around in. For most of the battle it'll move around, trying to line it's head up with X. The head will often fire down a large blue energy beam, dash away to dodge it, as it causes heavy damage. The head will also sometimes spit out two smaller orange heads that follow X, just shoot them to get rid of them. If the head flashes white, it'll send down a large spinning razor blade that will move across the ground towards X, just madly blast at it to destroy it. To defeat this boss, use charged shots on the head. You'll have to jump up to hit the head, so try to avoid being cornered before jumping. This boss shouldn't be too difficult to beat.
Weakness:
X-Buster.

 

Neon Tiger:

mmxb.gifGuide: Neon Tiger will jump up onto the walls often during this battle. First, he'll jump up to one of the walls and pause for a few seconds. He'll then perform one of two attacks. The first one is where he jumps down straight at X. Try to stay near the opposite wall as a jumps, but move forward a little so that when he jumps down you can dodge him by dashing into the corner. Once he lands he'll jump up to the other wall. The other attack is where he fires out energy balls from his tail. The balls will home in on X, so dash and jump out of their way. When he's on the ground he might also sometimes perform a charge attack, be very careful and try to jump over him, as this attack causes heavy damage. He has no apparent weakness, but the X-Buster works well against him. When he jumps up on a wall, charge up the X-Buster, jump up the opposite wall and fire at him. Just remember to be careful of his jump attacks, and you shouldn't have any problem beating him. Once you defeat Neon Tiger you'll receive the Ray Claw.
Weakness:
X-Buster.
Weapon Received: Ray Claw.

 

Launch Octopus:

mmxb.gifGuide: Launch Octopus will float down into the water-filled chamber before attacking. He'll often be firing out missiles in two-wave formations, so you'll have to either dash under them, jump over them or you can easily destroy them with the X-Buster. He'll also often try to jump down on top of X. Just dash to the left or right to dodge him. Quite often he'll jump up to a corner and create a huge swirling wave-vortex which will try to draw X into it. If you get caught, Launch'll begin to suck X's energy away. Just continuously dash away from him to dodge this attack. To defeat him, use the Ray Claw. You'll need to come in close to deal out a blow, but once you hit him, his tentacles will blow off and he'll only be able to fire missiles. He'll fire out a few, then try to jump on top of X, so dash to the side when he jumps, them attack once he lands. You'll probably run out of weapon energy before he blows, just finish him off with the X-Buster. Dodge his missiles and his jump attacks, and you should finish him off fairly easily. You'll gain the Marine Tornado weapon once he's defeated.
Weakness:
Ray Claw.
Weapon Received: Marine Tornado.

 

Flame Mammoth:

mmxb.gifGuide: Flame Mammoth will battle you in the large conveyer belt room. As soon as you enter the room, his energy bar will appear and he'll jump in from the right, so quickly dash to the left to dodge him. If he roars he'll change the direction of the moving conveyer belt, so make sure you know which way it's going to successfully dodge his jump attacks. He'll be performing his jump attacks quite often, just remember to dash under him and jump up as he lands, otherwise you'll be stunned for a second and won't be able to move. He'll also sometimes fire out a series of fireballs, jump up a wall to dodge them. He often also fires out several flames out of the screen, once they reappear they'll fall down on top of X, so dash to the side to dodge them. If he fires out a glob of oil which is then later hit by his fire, it'll engulf and create a wall of flames, so try to stay away if this happens. To defeat him, use the Marine Tornado. Wait until he jumps at you, then fire the weapon, Flame'll jump straight into the vortex and be thrown back by the blast. Keep up this sequence and you should defeat him very easily. You'll receive the Fire Wave once he's defeated.
Weakness:
Marine Tornado.
Weapon Received: Fire Wave.

 

Volt Catfish:

mmxb.gifGuide: Volt Catfish will be using a lot of heavy electric attacks during this battle. He'll quite often jump around and try to ram into X, dash under him to dodge his attacks. If he jumps into one of the corners of the room, he'll fire out two small energy balls that fly out, one on the top of the screen and one on the bottom. He'll them try to suck X in. The two balls will follow X and generate energy bolts up and down them. Try to move towards Catfish to dodge the bolts, but don't get too close. He also often sends out two large energy balls which crawl along the floor and walls, just jump over them when they come close. Use the Ray Claw to defeat him. When he jumps, dash to the side and hit him as he lands. If he performs the sucking attack, just whack him in the face. Once his health is nearly gone, he might begin to flash blue. If he does you won't be able to hit him, try to stay away as he'll launch another heavy electrical attack. Keep pounding him and you shouldn't have much trouble in finishing him off. You'll receive Tri-Thunder once you defeat him.
Weakness:
Ray Claw.
Weapon Received: Tri-Thunder.

 

Velgauder:

mmxb.gifGuide: Remember Velgauder from X1? Well, you'll have to fight him again here, but it won't be too difficult. Once you reach the end of the first final Maverick stage, he'll jump down the walls of the room before attacking. For most of the battle Velgauder will just try to run into X, try to jump over him to dodge this attack as it causes heavy damage. If you jump up the walls he'll also jump up after you so be careful. He'll also often fire out several energy balls that fly out in wavy directions, so try to jump up a wall to dodge them. If he fires out a large fire-wave, jump up the walls to dodge it. Defeat Velgauder with the Ray Claw weapon. As he charges you, just whack him in the face, and try to attack him as he jumps up over you. Keep hitting him and try to dodge him as best you can. He shouldn't be too difficult to beat.
Weakness:
Ray Claw.

 

Sphinx Tank:

mmxb.gifGuide: This annoying boss will be extremely difficult to defeat. First, you'll notice that a small purple moving pillar will appear above you, you can use this to reach the upper head on the tank. The tank will begin by moving slowly towards X, jump up on top of the pillar to avoid being cornered. The upper head will be constantly firing out energy balls that are difficult to dodge. Try to jump them as they come close. The lower head will sometimes fire out large missiles that will disappear off the top of the screen and then come down on X, move from side to side to dodge them. Make sure that you never touch the large drill on the front of the tank, as it causes massive damage. Once the tank moves all the way to the left, it'll stay there for a few seconds before retreating back to the right. You'll need to destroy both heads to defeat this boss. The top head's weakness is the Fire Wave weapon. Jump up onto the pillar, then fire out towards the head. The small fireball should strike the head and cause heavy damage. Keep this up and keep dodging the energy balls to blow the first head. The lower head's weakness is the Ray Claw weapon. It will be extremely difficult to hit the head without taking damage from the drill, so here I recommend that you switch to Zero. Once you have Zero, you'll notice that if you slash out at any part of the tank, it'll reel back. Keep doing this, then jump up and carefully hit the head without touching the drill. Dodge the missiles and keep up this attack to finish it off.
Weakness:
Fire Wave/Ray Claw.

 

Berkana:

mmxb.gifGuide: Once you reach the end of the final Reploid Research Laboratory stage, Berkana will appear for the final battle. She'll taunt X at first, then the battle will begin. She'll be floating around the top of the screen for the entire battle, so you'll easily be able to move around safely on the ground. She has two main forms of attacks, both can be deadly. The first one involves her firing out red balls from her staff that bounce around the room. If one hits you, spikes will appear on one of the walls and she'll send down small fireballs. Each time one hits the ground, two flames will crawl out along the ground and up the walls. The problem here is that you won't be able to jump or charge up the X-Buster. You'll just have to hold out until she stops firing. Once the attack stops, the spikes will disappear and you'll be able to jump again. She also often fires out a large blue energy ball from her staff. If it hits you, spikes will line the floor, so jump up the opposite wall to her to avoid them. A platform will appear in the center of the room so you'll be able to dodge her attack. She'll then fire down large blue ice spikes, try to move around as much as you can to dodge them. Eventually the spikes will disappear and she'll start firing out the red and blue balls again. She might also sometimes drop down a large spiked ball that rolls around the ground, just jump over it to dodge it. Her weaknesses are the Marine Tornado, Fire Wave and Tri-Thunder weapons, but you can only damage her with the Marine Tornado and Fire Wave weapons when you've been hit by one of the energy balls. If you get hit by the blue ball, her weakness will be the Marine Tornado, if you're hit by the red ball, it'll be the Fire Wave weapon. It'll be extremely easy to hit her with the Marine Tornado, just position X under her then fire the weapon to cause heavy damage, but be careful as she sometimes dives down to hit X. Jump up near her and fire out the Fire Wave to hit her. To make it much easier, use only the Tri-Thunder weapon, she'll always be vulnerable to it. Just remember to try and dodge the energy balls, if one hits you try to hold out until the attack ends. Use the other two weapons if you run out of weapon energy. She'll be very difficult to beat, but once you defeat Berkana, sit back, enjoy the finale and get ready to go through Zero's normal mode, or if you've already been through it, Extreme mode!
Weakness:
Marine Tornado/Fire Wave/Tri-Thunder.

 

Extreme Mode:

Sigma's First Form:

mmxb.gifGuide: Try to make sure that you haven't used X's Marine Tornado while fighting the eight bosses, as you'll need it here. Sigma will confront you once you beat the eight bosses and reach the end of the laboratory. He'll be in his X2 form, his attacks will also be very similar to the ones he used in X2. Sigma'll taunt you before the battle begins. He'll start by charging at you, he'll be slashing at you with his claws quite often, try to jump out of his way or up a wall to dodge it. He also often fires out five large energy balls which, one at a time, home-in on your character so try to dodge each one as they move. If he glows, he'll fire out a huge electrical-wall which causes heavy damage, so try to stay up high on a wall as the electric-wall covers part of the lower screen. You'll probably find using X in this battle easier than using Zero. If you use Zero, Sigma's weakness will be the Drill Crush and Dash techniques, but it'll be very difficult to hit him without taking heavy damage. If you find it too difficult, use X. Use the Marine Tornado, jump up a wall and air-dash over the top of Sigma, once you're directly over him, fire off the weapon to cause heavy damage. Try to dash off to a wall or land on the ground away from Sigma once you hit him. Try to stay up the walls above Sigma, he won't be able to hit you as easily as if you were on the ground. Keep jumping and air-dashing across the room while firing off the Marine Tornado to eventually destroy him.
Weakness:
Drill Crush/Dash/Marine Tornado.

 

Sigma's Final Form:

mmxb.gifGuide: Once you defeat Sigma's first form, he'll reappear in this huge armored suit. The large armor is completely invincible to all weapons/techniques except the X-Buster. This final form of Sigma has several attacks. If his armor is a yellow and purple color, he'll fire out several green energy balls, one at a time, which home in on X. Try to jump them just before they hit you and dash around on the ground to dodge them. If he becomes completely purple, green energy balls will appear in the air and will fly straight at X, try to dodge as many as you can before they stop coming. If he becomes a light blue color, he'll fire out the green energy balls again, but he might also stop and fly up out of the screen. He'll then come down on the opposite side of the room, jump up just as he lands has X'll be stunned for a second if you're on the ground when he lands. Be careful if Sigma begins flashing, as he'll fly across the room, creating a large green blast in front of him which is difficult to avoid. If he takes off on a diagonal path out of the screen, he'll come back down on the opposite side and fire off several huge green energy beams that can cause heavy damage. Try to dodge them by dashing under them as they fly across the screen. He might also fly across the top of the screen and pump down a huge green beam which is difficult to dodge, try to stay away from him as best you can until he stops firing, if he stops firing for a split second, quickly dash past. Sigma will probably use the heavy energy beam attacks quite often, so you'll need some practice in dodging them before avoiding them successfully. You'll need to use both X and Zero to successfully defeat Sigma. First, use X to take down the armor's defense by using charged shots from the X-Buster. When he's either yellow or blue, jump up and use a mid-air dash straight up so that you can reach the large face on the chest-plate of the armor. Fire off a charged shot (it must be either the yellow shot or one of the double-shots) and you'll notice that when it hits the large face the entire armor will flash. Hit the chest-plate with four charged shots and Sigma will freeze and begin to flash. When this happens, quickly press Start and switch to Zero. When you return, you'll notice that the armor will disappear and Sigma's first form will appear, motionless and defenseless. Whack him with the Beam Saber to cause heavy damage. You'll have to be quick, as after about a second the armor will reappear again. Make sure you have sub-tanks full, as when the armor is purple you won't be able to damage it, and Sigma will most likely use his energy beam attacks then. If you have to, use Zero while trying to avoid Sigma's attacks if he's purple to conserve X's energy. Once he becomes blue or yellow again, continue using X. This will be a very tough battle, but it's one like no other as you can switch between X and Zero at any time. Keep dodging his attacks, it might take a few tries, but once you manage to defeat Sigma, congratulations, you'll have completely finished the game and you'll now get access to the secret Boss Attack game mode!
Weakness:
X-Buster/Z-Saber/Marine Tornado.

 

Maverick Skull:

mmxb.gifGuide: This first boss will appear once you reach the end of the first stage. It'll take up most of the screen so you won't have much room to move around in. For most of the battle it'll move around, trying to line it's head up with Zero. The head will often fire down a large blue energy beam, dash away to dodge it, as it causes heavy damage. The head will also sometimes spit out two smaller orange heads that follow Zero, just whack them to get rid of them. If the head flashes white, it'll send down a large spinning razor blade that will move across the ground towards Zero, just madly hack at it to destroy it. To defeat this boss, use jump-slash attacks on the head. You'll have to jump up to hit the head, so try to avoid being cornered before jumping. This boss shouldn't be too difficult to beat.
Weakness:
Z-Saber.

 

Blast Hornet:

mmxb.gifGuide: Blast Hornet will be constantly trying to hit you during this battle. He'll use two main forms of attack, one where he fires out two smaller hornets, and a charge attack. If he fires out the small hornets, they'll slowly home in on Zero, just whack at them to destroy them. If he extends his stinger in an attacking pose, get ready to dash to the left or right or jump up a wall, as he'll fly down and charge at Zero. Make sure you dodge him as this attack can cause heavy damage. To defeat him, just slash at him with the Beam Saber whenever you can, jump up and hit him, then back away in case he performs the charge attack. Keep this up and you should defeat him without much trouble. You'll receive the Earth Gaizer technique once you defeat him.
Weakness:
Dash.
Weapon Received: Earth Gaizer.

 

Tunnel Rhino:

mmxb.gifGuide: Tunnel Rhino will be using a lot of charging attacks during this battle. First, he'll probably fire out two small drills that fly across the room at Zero, either jump over them or dash under them to dodge it. He'll also often charge without warning, so get ready to jump up the walls if he does. If he charges and flashes green, he'll pump out two rock boulders as he moves across the room, try to stay up a wall and wait for them to disappear. He might also sometimes ram his large arm-drill into the ground, if he does, smaller drills will appear out of the floor and ceiling, try to stay out of their way and wait for them to stop coming. To defeat him, use the Earth Gaizer technique. Each time you use it, he'll take heavy damage, but you'll probably run out of weapon energy before his health's completely gone. Once that happens, just strike at him when he stops charging or when he isn't moving. A tough battle, you'll need to be quick to dodge his attacks. You'll gain the Drill Crush once he's defeated.
Weakness:
Earth Gaizer.
Weapon Received: Drill Crush.

 

Wire Sponge:

mmxb.gifGuide: Wire Sponge will be using his vine whip quite often during this battle. He'll begin by throwing the whip up to the ceiling to suspend himself in the air, he'll then fire out several small green seeds that try to land on Zero, so you'll have to keep moving to dodge them. Once the last one lands, it'll become a small thorn vine in the ground or wall, so quickly destroy it. He might also sometimes whip out at Zero, so get ready to jump up the walls to dodge it. He'll also jump around the room so get ready to move. His weakness is the Drill Crush technique, but it'll be hard to hit him without taking damage yourself, if you take too much damage, just use the Beam Saber and strike when he's hanging from the roof or not moving. Once his health is nearly out, he'll probably become red. If he does, stay in the opposite corner as he'll shoot down several electric bolts from the ceiling which can cause heavy damage. He shouldn't be too difficult to finish off. Once he's defeated you'll receive the Lightning technique.
Weakness:
Drill Crush.
Weapon Received: Lightning.

 

Overdrive Ostrich:

mmxb.gifGuide: Overdrive Ostrich will battle you in an outdoor desert area. He'll be constantly trying to dash into Zero, so be ready to dash out of the way or jump over him. If he jumps straight up, he'll fire out a flying disc at you, be ready to dodge it quickly as it moves fast. He might also sometimes jump up and fire out several purple discs that fly out above the screen and then straight down. Dodge them by dashing out of the disc's range, but they might also sometimes home-in on Zero, so get ready to move. If he begins hopping around the screen, he'll leave and you'll see him running around in the background. Once he's level with Zero he'll jump back into the screen and try to land on top of him, so dash to the side just as he re-enters the screen. Overdrive's weakness is the Lightning technique, but as you perform the attack, the electric bolts will come down at random locations, so you might miss him. If you keep missing, just attack him with the Beam Saber every time he stops moving. Not too tough a battle, once you defeat him you'll receive the Dash technique.
Weakness:
Lightning.
Weapon Received: Dash.

 

Velgauder:

mmxb.gifGuide: Remember Velgauder from X1? Well, you'll have to fight him again here, but it won't be too difficult. Once you reach the end of the first final Maverick stage, he'll jump down the walls of the room before attacking. For most of the battle Velgauder will just try to run into Zero, try to jump over him to dodge this attack as it causes heavy damage. If you jump up the walls he'll also jump up after you so be careful. He'll also often fire out several energy balls that fly out in wavy directions, so try to jump up a wall to dodge them. If he fires out a large fire-wave, jump up the walls to dodge it. Defeat Velgauder with the Drill Crush technique. You'll need to get very close to hit him, so you'll probably get hit yourself while performing the attack. If your health isn't too low, just keep whacking him, otherwise be careful and time your attacks. He shouldn't be too difficult to beat.
Weakness:
Drill Crush.

 

Sphinx Tank:

mmxb.gifGuide: Once again, this poor excuse for a boss will be extremely difficult to beat. He'll be using the same attacks as in X's mode, but it will help if you've already got the Fire Wave technique from X's mode. Using the Fire Wave, stand on the pillar and perform the attack from there so that the flame strikes the upper head. If you don't have the Fire Wave technique, while standing on the pillar, use the Dash technique to inflict damage on the upper head, or switch to X and use charged shots on the head until it blows. Use a sub-tank if your health goes down, but once the upper head is gone it'll be easier from here on. The lower head has a variety of weaknesses, but the best and easiest way to defeat it is to stay on the pillar and madly slash away with the Beam Saber, when the tank comes close you'll smack the lower head and any missiles it fires. Keep slashing and the missiles it fires should miss you. Keep this up and you should finish it off quickly.
Weakness:
All Techniques.

 

Gareth:

mmxb.gifGuide: Once you reach the end of the final Maverick stage, Gareth will appear for the final battle. He'll be using a large spear-type weapon often during this battle. First, he'll probably jump up and throw down his spear at Zero, so get ready to dash or jump out of its way, as the spear will fly down and stick in the ground for a second. He might also jump up out of the screen, if he does he'll throw down several spears, but you shouldn't have much trouble in dodging them. His weakness is the Drill Crush technique, so again you'll need to get very close to inflict damage. He sometimes creates a small shield that blocks you attack, but if you can hit him as he jumps up and is just about to throw a spear, you should inflict heavier damage then from a normal shot. He'll be constantly trying to block your shots with his shield, so you'll need to hit him just after he throws a spear. Keep in mind the most of the time he'll drop down into the left corner once he's finished throwing down spears from above. A tough battle, but you'll probably find Gareth a little easier to beat than Berkana. Once you beat him, enjoy the finale, and get ready to play through X's mode, but if you've already done so, you'll now have access to the Extreme mode!
Weakness:
Drill Crush.

 
Extreme Mode:

Sigma's First Form:

mmxb.gifGuide: Try to make sure that you haven't used X's Marine Tornado while fighting the eight bosses, as you'll need it here. Sigma will confront you once you beat the eight bosses and reach the end of the laboratory. He'll be in his X2 form, his attacks will also be very similar to the ones he used in X2. Sigma'll taunt you before the battle begins. He'll start by charging at you, he'll be slashing at you with his claws quite often, try to jump out of his way or up a wall to dodge it. He also often fires out five large energy balls which, one at a time, home-in on your character so try to dodge each one as they move. If he glows, he'll fire out a huge electrical-wall which causes heavy damage, so try to stay up high on a wall as the electric-wall covers part of the lower screen. You'll probably find using X in this battle easier than using Zero. If you use Zero, Sigma's weakness will be the Drill Crush and Dash techniques, but it'll be very difficult to hit him without taking heavy damage. If you find it too difficult, use X. Use the Marine Tornado, jump up a wall and air-dash over the top of Sigma, once you're directly over him, fire off the weapon to cause heavy damage. Try to dash off to a wall or land on the ground away from Sigma once you hit him. Try to stay up the walls above Sigma, he won't be able to hit you as easily as if you were on the ground. Keep jumping and air-dashing across the room while firing off the Marine Tornado to eventually destroy him.
Weakness:
Drill Crush/Dash/Marine Tornado.

 

Sigma's Final Form:

mmxb.gifGuide: Once you defeat Sigma's first form, he'll reappear in this huge armored suit. The large armor is completely invincible to all weapons/techniques except the X-Buster. This final form of Sigma has several attacks. If his armor is a yellow and purple color, he'll fire out several green energy balls, one at a time, which home in on X. Try to jump them just before they hit you and dash around on the ground to dodge them. If he becomes completely purple, green energy balls will appear in the air and will fly straight at X, try to dodge as many as you can before they stop coming. If he becomes a light blue color, he'll fire out the green energy balls again, but he might also stop and fly up out of the screen. He'll then come down on the opposite side of the room, jump up just as he lands has X'll be stunned for a second if you're on the ground when he lands. Be careful if Sigma begins flashing, as he'll fly across the room, creating a large green blast in front of him which is difficult to avoid. If he takes off on a diagonal path out of the screen, he'll come back down on the opposite side and fire off several huge green energy beams that can cause heavy damage. Try to dodge them by dashing under them as they fly across the screen. He might also fly across the top of the screen and pump down a huge green beam which is difficult to dodge, try to stay away from him as best you can until he stops firing, if he stops firing for a split second, quickly dash past. Sigma will probably use the heavy energy beam attacks quite often, so you'll need some practice in dodging them before avoiding them successfully. You'll need to use both X and Zero to successfully defeat Sigma. First, use X to take down the armor's defense by using charged shots from the X-Buster. When he's either yellow or blue, jump up and use a mid-air dash straight up so that you can reach the large face on the chest-plate of the armor. Fire off a charged shot (it must be either the yellow shot or one of the double-shots) and you'll notice that when it hits the large face the entire armor will flash. Hit the chest-plate with four charged shots and Sigma will freeze and begin to flash. When this happens, quickly press Start and switch to Zero. When you return, you'll notice that the armor will disappear and Sigma's first form will appear, motionless and defenseless. Whack him with the Beam Saber to cause heavy damage. You'll have to be quick, as after about a second the armor will reappear again. Make sure you have sub-tanks full, as when the armor is purple you won't be able to damage it, and Sigma will most likely use his energy beam attacks then. If you have to, use Zero while trying to avoid Sigma's attacks if he's purple to conserve X's energy. Once he becomes blue or yellow again, continue using X. This will be a very tough battle, but it's one like no other as you can switch between X and Zero at any time. Keep dodging his attacks, it might take a few tries, but once you manage to defeat Sigma, congratulations, you'll have completely finished the game and you'll now get access to the secret Boss Attack game mode!
Weakness:
X-Buster/Z-Saber/Marine Tornado.

 

Armor Parts and Item Locations:
X's Upgrades:

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X's Leg Upgrade - Allows X to air dash - Found in Volt Catfish's stage. x_buster1.gifThe boots upgrade is in Volt Catfish's stage. You will eventually come across a large shaft leading up with waterfalls gushing down. Jump up the shaft, destroying any enemies you come across. Once you reach the top, the rest of the stage will head off to the right, but before going, continue to jump up the wall on your left. You'll eventually see an opening on the right, head in to find the capsule. This upgrade will allow X to perform a horizontal and vertical dash in mid-air.


xbuster_b.gifX's Arm Upgrade - Allow X to fire a more powerful X-Buster shot - Found in Flame Mammoth's stage. x_buster1.gifThe X-Buster upgrade is found in Flame Mammoth's stage. You'll need the Helmet and Boots upgrades to reach this one. Just before the large lava area with the mattock-throwing robots, you should see a group of strange looking blocks up on the ceiling. Jump up and using the vertical mid-air dash, begin breaking through them. Jump up the wall on the left to destroy the remaining ones to reach the capsule. This upgrade will give X two different types of stronger X-Buster shots, once you charge him up past purple and then onto white, release fire to fire off a charged shot, then press fire again to fire a second. If the two shots overlap, four smaller energy balls will fly out in diagonal directions.


xbuster_b.gifX's Body Upgrade - Allows X to do Giga Crush - Found in Launch Octopus' stage. x_buster1.gifThe Armor upgrade is found in Launch Octopus' Stage. Eventually you'll come across the large green sub similar to the one found in X1, jump up the swirling vortex on the left of it to reach the sub. Jump up onto it and blast away at the glass cockpit in front of you. Once the sub blows, fall down into the deep chasm it creates, then go right. You'll reach a large room filled with spikes, and a large red serpent will appear. Ride on it's back and blast away at the head or tail to eventually destroy it. Once it blows head right to find the capsule. This upgrade will enhance X's defensive capabilities by reducing damage inflicted from enemies to half the normal rate. You'll also receive the G-Crush weapon, but to fill up weapon energy for it you'll need to take damage from enemies. Once the energy bar is full, select it from the sub-screen to discharge a huge energy blast that destroys all enemies on-screen.


xbuster_b.gifX's Helmet Upgrade - Allow X to do head butt - Found in Neon Tiger's stage. x_buster1.gifThe helmet upgrade is found in Neon Tiger's stage. After traversing across the moving platforms with gun turrets, you'll cross the ravine and see the capsule hidden behind a wooden wall. You'll need the Fire Wave weapon to reach it. Using the Fire Wave weapon, destroy the wall blocking the capsule to reach it. This upgrade will allow X to destroy certain blocks with a head-butt.

 

Zero's Upgrades:
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Zero's Leg Upgrade - Allow Zero to break bricks with kicks - Found in Wire Sponge's stage. x_buster1.gifThe boots upgrade is in Wire Sponge's stage. Once you reach the indoor area where large platforms are rising up a tall shaft, wait for the next one to clear, then drop down the hole in the ground and fall down to the right. You'll land on a platform below, head right to find this capsule. This upgrade will allow Zero to destroy certain blocks by jumping off them.
 


xbuster_b.gifZero's Arm Upgrade - Allows Zero Final - Found in Tunnel Rhino's stage. x_buster1.gifThe X-Buster upgrade is found in Tunnel Rhino's stage. You'll need the Lightning technique to reach this one. Once you reach the armored carrier in the cavern with breakable floor, get in the carrier and drop down through the crumbling floor. Once you reach the bottom of the shaft, head left. You should reach an opening in a wall too small for the carrier, so jump out and go into the opening. You'll see a metal wall blocking your way, use the Lightning technique to destroy it to reach the capsule. This upgrade gives Zero his strongest technique, Zero Final, which can destroy smaller enemies easily or heavily damage bosses.


xbuster_b.gifZero's Body Upgrade - More powerful defense - Found in Blast Hornet's stage. x_buster1.gifThe Armor upgrade is found in Blast Hornet's Stage. You'll need the Drill Crush technique to reach this one. Once you reach the large flying ship with the array of gun turrets, make your way to the right. Once you reach the area where if you shoot out the two turrets and the flame thrower, the floor breaks away, destroy the first turret and the flame thrower, but leave the last turret. Jump up and dash over it, then continue on. You'll come across a large wall. Use the Drill Crush to destroy it to find the capsule. This upgrade will enhance Zero's defensive capabilities, reducing the amount of damage inflicted from enemies.


xbuster_b.gifZero's Helmet Upgrade - Allow Zero to do head butt - Found in Overdrive Ostrich's stage. x_buster1.gifThe helmet upgrade is found in Overdrive Ostrich's stage. Once you reach a ladder leading down that has a huge wide chasm to the left of it (just after the area with the instant-death vortex pillars), Stand on the edge of the ladder, then jump out to the left and mid-air dash. You should see another ladder leading up, just as you hit the lower part of it press up to grab on to the ladder. Climb up to find this capsule. This upgrade will allow Zero to destroy certain blocks with a head-butt.

 

Heart Tanks Locations:
Heart Tanks - Increase the energy bar - Found in all the maverick's stages.

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The first heart with X can be found in Neon Tiger's stage. Near the beginning of the stage, you'll come across an armored carrier. Jump in and walk forward. You'll see large trees ahead which you can break open with the carrier's fists. Once you reach the seventh tree, stand on the left of it and jump up. Hold A to hover up and you'll notice another breakable section further up the trunk. Blow it open to find this heart.

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The second heart with X is in Flame Mammoth's stage. Once you reach the large area filled with lava and the mattock-throwing robots, stay low on the platforms and head right. Eventually you'll come up to a large wall, you should notice the heart just below the platform you're standing on. To reach it, jump down one of the holes on the left created by the fireballs, then quickly run right and grab the heart. You'll take damage, but it will help if you've already beaten the stage so that you can quickly escape once you get the heart.

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The third heart with X is in Launch Octopus' stage. You'll need the Boots Upgrade to reach this one. As you proceed in this underwater stage, you'll eventually come across vents in the ground which shoot up huge wave-vortex bars which can allow you to jump up. Once you reach the third one, jump up to the top of it, then using the vertical mid-air dash, jump over to the platform above the water on the right to find this heart.

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The fourth heart with X is in Volt Catfish's stage. You'll need to have beaten this stage already before you can safely reach this heart (but you can still make it if you're quick). Once you reach the second area with the deadly waves that streak across the screen, you should see the heart just below the platform you're standing on. Go right, then wait for the waves to appear. Once they pass, jump down and quickly head left to the heart. Grab it and quickly exit the stage before the waves come back, or if you time it right you should be able to grab the heart and get back to safety before the waves reappear.

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The first heart with Zero can be found in Blast Hornet's stage. Once you reach the second open area with the suspended green robot bugs that you must climb over to reach the next area, on the platform before the first bug robot, slide down the edge of it on the right and you'll notice a robot bug below. Jump down onto it and make your way to the right. Climb over the next few bugs and you should see this heart sitting on one.

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The second heart with Zero is in Tunnel Rhino's stage. Eventually you'll find an armored carrier in one of the long caverns, jump in and move forward. Knock down any of the enemy carriers that get in your way, but look out for the crumbling rocks in the floor below. You should easily spot it, jump up and hover over it. You'll have to jump a second one before reaching the dead-end. Once you reach a large wall, stand back from it and jump straight up. You should easily see the heart high up on a platform, hover up, then jump out of the carrier to reach the heart.

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The third heart with Zero is in Wire Sponge's stage. This heart is extremely easy to find. Once the stage begins, just jump up to the top corner of the wall behind you to find the heart hidden in a small alcove.

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The fourth heart with Zero is in Overdrive Ostrich's stage. This heart will be difficult to reach safely. Once you reach the second area where you have to ride on the jet bike, eventually you'll reach an area where you should see an enclosed room below a large platform, you'll need to drop down into the hole on the left and land inside the room to reach the heart, then charge at the door blocking you in to get out of the room. This heart will be tricky to get to, it might take some practice, try to jump so that when you fall down the hole you land on the platform without touching the edge of the upper platform.

 

Sub-Tanks Locations:
Sub-Tanks - Stores health - Found in Flame Mammoth's and Wire Sponge's stages.

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The sub-tank with X is in Flame Mammoth's stage. You'll need the boots upgrade to reach this one. Once you reach the large lava-filled room with the mattock-throwing robots, jump up the platforms, and make your way up to the highest on the left. Once you reach the highest platform, jump off the edge of it and mid-air dash to the left. You'll land on a high wall and should spot the sub-tank behind a wall. Break the blocks by jumping off them to reach the tank.

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The sub-tank with Zero is in Wire Sponge's stage. Once you reach the area with spikes lining the floor and the floating pillars, jump up to the first pillar, then jump back onto the wall on the left. Jump up to the platforms above, then make your way to the right to find the sub-tank.

 

Parts:
The Part Shop can be accessed via the stage selection screen. You'll see three rows of parts, the top level has common parts which both X and Zero can use, the second row has parts only X can use, and the third only Zero can use. Each part will have a certain amount of DNA Souls to build, they can be found in each stage as small yellow and blue energy balls which enemies occasionally drop. The yellow balls also give your character more life energy, while the blue ones also give you weapon energy. The more balls in the group, the more DNA Souls you'll get. They look similar to energy capsules but are rounder and more common. Each time you defeat a stage boss you'll receive a hefty amount of them. You'll also have a new item available each time a stage boss is defeated, and the parts available in the current game mode will be available at the start of the next. Normally, X and Zero can equip two to three parts at a time, but keep in mind that once one character has a common part active, the other will not be able to use it. Read on below for specific part details.

Normal Parts:

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Hyper Dash:
Cost: 1000.
This will increase the speed and distance of the dash move, it'll also make your character invincible while dashing.

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Super Recover:
Cost:
200.
This doubles the amount of life/weapon energy you receive from energy/weapon capsules.

item_hyperdash.gif

Energy Saver:
Cost:
100.
This halves the amount of energy used up from special weapons/techniques.

item_energysaver.gif

Barrier Extender:
Cost:
100.
This halves the damage taken from enemies.

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Extreme Mode:
Cost:
2000.
This will activate Extreme mode in the main menu (will not be available in Extreme mode).

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Boss Attack Mode:
Cost:
200.
This will activate Boss Attack Mode in the main menu (will not be available if already enabled).


X's Parts:

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Buster Plus 1:
Cost:
200.
Enhances shots from the X-Buster - causes more damage to enemies.

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Buster Plus 2:
Cost: 200.
Strengthens the X-Buster to the next level after Buster Plus 1.

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Speed Shot:
Cost: 100.
X-Buster shots fly across the screen faster.

item_quickcharge.gif

Ultimate Buster:
Cost: 500.
Every time you fire the X-Buster will fire off a charged shot. 

item_weaponplus.gifHyper Charge:
Cost: 1000.
This will enable the X-Buster to charge faster than normal.

item_quickcharge.gifArmor:
Cost: 2000.
This will give X all the armor upgrades at once (will not be available if you've already found all the armor capsules).


Zero's Parts:

item_saberplus.gif

Saber Plus 1:
Cost:
200.
This enhances the Z-Saber's damage inflicted upon enemies.

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Saber Plus 2:
Cost: 500.
Increases the Z-Saber to the next level after Saber Plus 1.

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Ultimate Saber:
Cost: 800.
Gives Zero the strongest enhancement to his Z-Saber.

 

x_buster.gif

xbusterb.gifX-Buster:
You will begin the game with X's standard weapon, the X-Buster. This can fire small energy balls that cause standard damage to enemy targets. The X-Buster can also be charged up to fire off a larger, stronger shot which will cause much more damage to enemies than the normal blast. Once you find the X-Buster upgrade, you'll be able to fire off two types of enhanced shots that can cause greater damage to enemies, the special four-blast shot, and you'll be able to charge up the special weapons.

X's Mode Weapons:

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xbusterb.gifRay Claw:
The Ray Claw is gained once you defeat Neon Tiger. This weapon will fire out a small arc-blade in front of X. The blade will remain positioned directly in front of X, and will damage any targets that strike it. The charged-shot will blast out many small energy balls which fire out in different directions from X, and can cover a larger range to the primary fire.
 

 

x_buster.gif

xbusterb.gifMarine Tornado:
The Marine Tornado is gained once Launch Octopus is defeated. This weapon will create a huge water-wave vortex which will fly up and down the screen over X. Any enemies caught in the wave will receive heavy damage from the blast. The charged-up shot will fire out four small torpedoes that fly out in different directions from X. This creates a larger range of fire.
 

 

x_buster.gif

xbusterb.gifFire Wave:
The Fire Wave is gained once you defeat Flame Mammoth. This weapon fires out several large fireballs which move out in front of X. The flames will continue to cross the screen, engulfing any enemies along the way. The charged shot will cause large fireballs to fall down from the top of the screen, they'll slowly advance forward in front of X and will heavily damage any targets caught in the flames.

 

x_buster.gif

xbusterb.gifTri-Thunder:
The Tri-Thunder is gained once Volt Catfish is defeated. This weapon fires out three large electric balls that fly out in different directions from X. Any enemies caught in the electricity will be fried. The charged shot will cause X to charge up electrical energy in his body, then once releasing the energy, huge electrical balls will fly out in random directions, wiping out any enemies on screen.




Extra Weapons:

You'll only be able to use these following weapons if you've played through Zero's mode first and then through X's straight after, or if you beat Zero's bosses in Extreme mode with X.

 

x_buster.gif

xbusterb.gifBomb Bee:
The Bomb Bee is gained once you defeat Blast Hornet. This weapon will fire out a small hornet from the X-Buster, it will then home-in on any on-screen enemy target to destroy or heavily damage them. The secondary fire will create three hornets that will spin around X, acting as a shield to dangerous enemies, any targets touching the hornets will be heavily damaged.
 

 

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xbusterb.gifTornado Fang:
The Tornado Fang is gained once Tunnel Rhino is defeated. This weapon fires out three small drill-type projectiles which will launch out from X and damage any enemies they strike. The secondary fire will create a larger single drill which will remain attached to X, this can then be used to charge at any enemies.
 

 

x_buster.gif

xbusterb.gifStrike Chain:
The Strike Chain is gained once you defeat Wire Sponge. This weapon will fire off a small extended chain which will grab on to walls and items as well as causing damage to targets. X can grab onto a wall and drag himself towards it and can also retrieve items with this weapon. The charged-up shot will fire out a longer and bigger chain to reach further objects.
 

 

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xbusterb.gifSonic Slicer:
The Sonic Slicer is gained once Overdrive Ostrich is defeated. This weapon will fire out a razor-disk which will bounce off any walls it hits. This can be useful for striking enemies who move around a lot. The secondary fire will fire out four large energy disks above X which will fly up out of the screen and then straight down to strike any targets on-screen.

 

xbusterb.gifZ-Saber:x_buster.gif
Zero will has his trusty Beam Saber (aka Z-Saber) as his primary weapon. While standing still, Zero can perform a quick three-strike slash attack that can cause heavy damage to most enemies in the game. The only disadvantage is that you'll have to be very close to a target to hit it, but the Saber is deadly and destroys most non-boss enemies with a few strikes. As well as utilizing the Beam Saber, Zero will also be able to use effective special attacks gained from defeated bosses.
 

mmxb.gifZero Final:
Select this from the sub-screen.
(Uses weapon energy)
You'll receive this special technique once you find the capsule upgrade for the X-Buster. This technique uses up a lot of weapon energy, so only use it if you absolutely have to. Once selected from the sub-screen, Zero will dash forward with his Beam Saber extended, then if he hits an enemy, he'll fly straight up the screen, performing an uppercut swipe. Any enemies caught in the fire will be destroyed.

Zero's Mode Techniques:

mmxb.gifEarth Gaizer:
Select this from the sub-screen.
(Uses weapon energy)
The Earth Gaizer is gained once Blast Hornet is defeated. This technique causes Zero to punch the ground where he's standing, then a huge wave of minor explosions will sweep across the screen from left to right, destroying or heavily damaging any enemies caught in the blast on-screen.

mmxb.gifDrill Crush:
After jumping up, press and hold down, then press fire (B) to perform the attack.
(Does not use weapon energy)
The Drill Crush is gained once you defeat Tunnel Rhino. This technique allows Zero to perform a downward drill-stab attack. You'll need to be very close to an enemy to hit them, so practice will be needed before mastering this technique. Usually causing heavy damage or destruction to a target, this is an effective attack.

mmxb.gifLightning:
Select this from the sub-screen.
(Uses weapon energy)
The Lightning technique is gained once Wire Sponge is defeated. This technique causes Zero to summon several electric bolts that streak down from the top of the screen and can destroy or heavily damage targets they strike. The positioning of the bolts seems to be random so it might be difficult to hit specific target, but they usually drop down near Zero.

mmxb.gifDash:
Select this from the sub-screen.
(Uses weapon energy)
The Dash technique is gained once you defeat Overdrive Ostrich. This technique causes Zero to dash straight out in front of his current position with his Beam Saber extended, allowing him to destroy any targets in the fire range. When you select it from the sub-screen, all the enemies on-screen will freeze while Zero performs the attack so any in range will be trapped. Once the attack finishes, Zero will return to the position he started from.

Extra Techniques:
You'll only be able to use these following techniques if you've played through X's mode first and then through Zero's straight after, or if you beat X's bosses in Extreme mode with Zero.

mmxb.gifRising:
Hold up while standing still then press attack (B).
(Does not use weapon energy)
The Rising technique is gained once you defeat Neon Tiger. This technique will allow Zero to perform an upward slice attack which can damage or destroy any targets above him. You'll need to get close to successfully hit the target, so try to avoid taking damage yourself.

mmxb.gifFish Fang:
Jump up, then while holding up, press attack (B).
(Uses weapon energy)
The Fish Fang is gained once Launch Octopus is defeated. This technique will allow Zero to fire out two small missile-type projectiles while jumping. The two missiles will fly down from Zero on a diagonal path, so it'll be good for striking enemies below Zero or ones in awkward positions.

mmxb.gifFire Wave:
While standing still, press and hold down while pressing attack (B).
(Uses weapon energy)
The Fire Wave is gained once Flame Mammoth is defeated. This technique allows Zero to fire out six large fire-balls which will burn any enemies in their path. You can also use this attack while in the air, if you do a small fireball will fly out and hit the ground, then the larger flames will appear.

mmxb.gifTri-Thunder:
Select this from the sub-screen.
(Uses weapon energy)
The Tri-Thunder is gained once you defeat Volt Catfish. This technique will cause Zero to punch the ground, then several large electric balls will fly out from that point into the air in different directions. Any enemies caught in the range of fire will be either destroyed or heavily damaged.

 
Shotokan Capsule:
As with the first Xtreme game, there is a ninth capsule that contains the Shotokan moves. Of course to get it you need to have collected all of the Armor Upgrades and Sub-Tanks. It's also necessary to collect all of the Heart Tanks. In the third Sigma stage, after X and Zero split up to take care of Berkana and Gareth, there will be a long vertical corridor with rocket platforms to climb, and electric walls on both sides. At the top, you can air dash through the discolored electric wall to the right to find the special capsule. This is a bit of a leap of faith, though, as the electric wall can kill you if you do it incorrectly. To make sure you get the right area, look for the piece of wall that is a gray tone instead of the purple color that all the other walls are.

Super-Powerful X:
As long as the Shotokan moves don't matter to you, you can have an unarmored X more powerful than the armored one. It can only be done in Xtreme mode. Unarmored X can have 4 modules equipped. Armored X is restricted to only 2. If you give X all the functionally useful pieces of his armor, but refrain from getting the useless piece of armor (his Helmet upgrade), you can have all the benefits of the armored X with 2 more module slots as well. The Helmet Upgrade is really only useful for getting to the Arm Upgrade. If you have Zero's Helmet and Leg Upgrades, however, you can go into Flame Mammoth's stage, and use Zero to get up to the capsule location. Then, switch to X to get the Arm Upgrade that lies there. This way, you don't have to pick up the Helmet upgrade, and you can have four module slots equipped. Using the Speed Shot, Ultimate Buster, Buster Plus 1 and Buster Plus 2, many bosses fall without the need to use a single Sub-Tank.

Easier Boss Attack Mode:
The Boss Attack mode is a fun way to pass time, but a major problem of it is that with no armor, it can be tricky. Hold Select as you press Start to enter the Boss Attack mode, and both X and Zero will start out having all of their armor upgrades.
X's Ending:
X can sense the DNA Souls returning to the Reploids (evidently they just float back to their proper places on their own...unless they're Maverick Souls of course). X also spends some time thinking about Zero. Although the game never mentions whether or not Zero succeeded in defeating Gareth without you, it is assumed he did.

Zero's Ending:
Similar to X's ending, except Zero is said to "assist" in returning the Souls (rather than just standing there sensing that they're going on their own). The ending also mentions that Zero feels he can do anything as long as X is around. (Clearly whoever wrote this never played Mega Man X6.)

Extreme Ending:
This ending shows the island with the DNA Souls returning, and X and Zero have a conversation about the Souls, and about Iris's first job as a Maverick Hunter. Then they say that their job is done and go home.