|Welcome! Please check To-Do List to see what pages need help, who is working on what, etc.|
Mega Man Zero
From Mega Man Wiki
|<-- First of the series||Mega Man Zero series||Mega Man Zero 2 -->|
|Game Title(s):||Mega Man Zero, Rockman Zero|
|Game mode(s):||Single Player|
|Platform(s):||Game Boy Advance|
Mega Man Zero, known as Rockman Zero (ロックマンゼロ, Rokkuman Zero) in Japan, is a platformer game in the Zero era. It is the first game in the series, taking place 100 years after the X era and dealing with Zero's resurrection by the human scientist Dr. Ciel and subsequent endeavours to help a Resistance movement of reploids against the oppressive regime of Neo Arcadia.
The game was first released on the Game Boy Advance in Japan in April 2002, and saw international releases later in the same year. It has since been re-released as part of the Mega Man Zero Collection on the Nintendo DS in 2010, as well as the Mega Man Zero/ZX Legacy Collection on multiple other systems in 2020.
Spoiler warning: Plot and/or ending details follow.
Abandoned in a remote energy mine, Zero wakes up from 100 years' sleep when security guards chase Ciel into a cave. No one yet knows that Zero used to fight for world peace as a Hunter, since he has lost his memory data.
Ciel organises Resistance efforts from the Resistance Base, giving Zero his missions and communicating remotely during them. She must usually be visited to start a mission or save the game data, and can also be talked to for information on new developments in the story.
These mysterious reploids may have been created in the image of a certain famous reploid.
These Reploids live with Ciel in the Resistance base.
Most Resistance members can be found around the Resistance Base, with some showing up only after Zero saves them during a mission. Many are unnamed, but a few named individuals appear.
- Alouette - A young reploid girl who talks to Zero.
- Andrew - An old reploid who awards Zero with items for listening to his stories.
- Cerveau - A reploid scientist who develops new weapons for Zero.
- Colbor - A reploid rescued in Rescue Colbor.
- Hibou - A heavyset reploid who blocks Zero's way until he is given 250 Energy Crystals.
- Milan - A Resistance member who dies while protecting Ciel in the intro.
A version of X that is able to exist as a Cyber-elf, having abandoned his original body. He shows up to help Zero at various points in the game, usually in form of a colourful energy.
A Cyber-elf who accompanies Ciel in the intro. Ciel uses her to awaken Zero from his 100-year-long sleep and repair him, but like most Cyber-elves, she dies in the process.
Zero encounters large numbers of minor foes throughout his adventure, most of which respawn whenever Zero comes back to their spawn point and can thus be destroyed an infinite number of times. Unlike other Mega Man games, the enemies found in an area are not constant, but may change depending on the current mission (and whether one is active at all). Therefore, the places in which certain enemies can be found may vary depending on the state of the game.
Most minor enemies in Mega Man Zero have a specific Cyber-elf reward associated with them, which the player receives by destroying a certain number of the enemy while on a specific mission.
|Barrier Counter||Flies left and right within a set range with a shield blocking its front. If the shield is hit too much, it retaliates with a powerful shot.||7||2 (contact)
|Factory (Occupy Factory), Neo Arcadia Core||Beenet (5, Occupy Factory)|
|Battleattle Bros||A pair of stationary tortoises. The bottom one can fire rockets forward, while the top throws small bombs in an arc. Whenever one is attacking, the other turtle is invincible. Defeating the bottom tortoise destroys both.||12 (big turtle)
4 (small turtle)
|Hidden Base (Find Hidden Base), Subway (Rescue Colbor), Neo Arcadia Shrine, Neo Arcadia Core||Shelter (3, Find Hidden Base)|
|Calibee||A helicopter that flies ahead of Zero, dropping large numbers of Pantheon Hunters and Kerberos. It cannot be destroyed and must simply be followed until it releases Fefnir, the boss of the stage.||N/A||N/A||Desert (Duel in Desert)||None|
|Cameloid||A stationary camel robot that creates a constant stream of fire in front of it. Its neck protects its vulnerable torso, but attacking it will make it flinch, briefly allowing shots to go past and stopping the flames.||16||2 (contact)
|Desert (Duel in Desert and after)||Kenite (2, Duel in Desert)|
|Carry Arm||Swoops across the screen, carrying and dropping a Spyking enemy.||4||2||Disposal Center (except Hittite Hottaid mission), Desert (Duel in Desert)||None|
|Carry Arm platform||Carry Arms carrying wood, which Zero can use as platforms. They spawn infinitely and always move straight up, to the right, then straight down. The Carry Arm part can hurt Zero and can be destroyed, causing the logs to fall.||4||2||Factory||None|
|C-Hopper||Jumps between the floor and ceiling, firing in a half circle around it every time it sticks to either.||4||1 (contact)
|Factory (Occupy Factory), Hidden Base (Stop the Hacking), Resistance Base (Hanumachine mission)||Ribbid (5, Occupy Factory)|
|Colpper||A metal sphere that flies back and forth horizontally or vertically within a small area. It explodes when touched or destroyed, which can harm Zero, but also damages enemies close to it.||1||3 (contact)
|Underground Laboratory (Rescue Ciel, Retrieve Data), Factory (Occupy Factory), Hidden Base, Desert (Duel in Desert)||Bomga (5, Retrieve Data)|
|Condoloid||A vulture robot that flies overhead and swoops down at Zero very quickly when he is near.||3||2||Desert (except Duel in Desert), Neo Arcadia Shrine||Birfly (5, Find Shuttle)|
|Contrainer||A stationary, floating device that causes strong winds, which push Zero away. It changes the wind direction after a while.||8||1||Disposal Center (Disposal Center mission),||None|
|Crush Roller||A stationary enemy that holds a spiked barrel above its head, which it periodically slams down some distance in front of it, blocking shots. Zero can stand in the space between the barrel and the enemy's body.||12||1 (body)
|Subway (Destroy Train), Underground Laboratory (Recover Data), Neo Arcadia Shrine||Hafmargo (3, Destroy Train)|
|Garm||A robot dog that rushes at Zero and tries to pounce him. It can latch on, dealing damage and immobilising for up to three ticks or until it is shaken off. Shots knock them back a little.||6||2 (pounce)
1 (per tick)
|Factory (Protect Factory), Neo Arcadia Shrine||Stickon (5, Protect Factory)|
|Glare Eye||Bat-like drones that hang from the ceiling and wake up when Zero comes near, chasing him.||2||1||Subway (except Rescue Colbor), Disposal Center (Hittite Hottaid mission), Hidden Base (except Stop the Hacking), Factory (Protect Factory), Resistance Base (Hanumachine mission)||Birtack (20, Hittite Hottaid mission)|
|Gyro Cannon||Hovers in the air, firing shots diagonally upwards and downwards or dropping bombs if Zero is under it. The propeller can be destroyed separately, causing the cannon to fall and break, or otherwise causing it to fly away with the scrap if the cannon is destroyed first.||8 (body)
|Factory (Protect Factory), Neo Arcadia Shrine, Neo Arcadia Tower||Birraid (6, Neo Arcadia Tower)|
|Heli Metall RW||A Heli Metall that flies around, moving through walls and and shoots diagonally downward. The propeller can be destroyed separately. Cannot be found normally, but flying/ceiling-based enemies and Top Gabyoalls turn into these if a Metall Cyber-elf has been used.||1 (body)
|Kerberos||A uniwheeled enemy that drives around quickly.||7||2||Subway (except Rescue Colbor), Desert (Duel in Desert)||Itemon (5, Destroy Train)|
|Kumotial and Hoppider||A spider nest that spawns up to 6 Hoppiders at a time, which jump out and skitter towards Zero.||6 (Kumotial)
|Underground Laboratory (before Retrieve Data)||Stoccue (5 Kumotials, Rescue Ciel)|
|Metall RW||Hides under its helmet until Zero comes near, then pops up and either dashes forward or shoots a projectile straight ahead. Only vulnerable when not hiding. Cannot be found normally, but most ground enemies turn into these if a Metall Cyber-elf has been used.||10||8 (contact)
|Pantheon Flier||A Pantheon that flies large circles around Zero, aiming and shooting projectiles at him. Attacks knock it around.||8||2 (contact)
|Disposal Center (Disposal Center mission), Subway (Destroy Train, Rescue Colbor)||Birtross (3, Rescue Colbor)|
|Pantheon Guardian||A basic Pantheon that shambles around, punching Zero with its spark rod arm if he comes to close.||6||2||Underground Laboratory (before Retrieve Data), Hidden Base, Resistance Base (Hanumachine mission)||Stocchu (5, Rescue Ciel)|
|Pantheon Guardian sentry||A special variety of Pantheon Guardian that can sound and alarm if it spots Zero, causing the reploid prison cells to be locked and Pantheon Warriors to rush in.||6||2||Hidden Base (Find Hidden Base)||None|
|Pantheon Hunter||Walks around and stops to fire three projectiles forward. Attacks knock them back a little and can prevent the attack.||3||1 (contact)
|Underground Laboratory (Rescue Ciel), Disposal Center (except Hittite Hottaid mission), Subway (Rescue Colbor), Desert (Duel in Desert), Neo Arcadia Tower, Neo Arcadia Core||Gireff (5, Disposal Center mission)|
|Pantheon Warrior||Rushes at Zero and tries to punch him with its giant fist. It blocks most projectiles with its arm, though it sometimes fails to do so.||12||2 (contact)
|Subway (Destroy Train, Hidden Base, Resistance Base (Hanumachine mission), Neo Arcadia Core||Buffer (5, Destroy Train)|
|Pantheon Zombie||Slow-moving Pantheons that are summoned from the ground by Anubis Necromancess III. They cling on to Zero, immobilising him and draining his energy until he wiggles free. All Zombies are destroyed whenever Anubis goes underground.||10||2 (contact)
2 (per tick)
|Desert (Find Shuttle), Neo Arcadia Core (Anubis Necromancess III refight)||None|
|Rayblade||A spinning disc with two electric rays on the sides. It floats in place and may rotate in either direction, at one of two speeds. It cannot be destroyed, though charged attacks with the Thunder Chip or Ice Chip equipped will stop it briefly.||N/A||3||Underground Laboratory (Retrieve Data), Neo Arcadia Shrine||None|
|Rayven||A robotic bird that drops down, then launches forward while releasing two homing missiles.||2||1 (contact)
|Subway||Birdian (5, Destroy Train)|
|Ryusa Mixer||A stationary machine that resides at the bottom of sand pits and sucks in the sand on both sides, causing Zero to move down towards it. Once destroyed, it remains destroyed for the rest of a mission.||10||2||Desert (except Duel in Desert)||None|
|Sandjaws||Beartraps hidden in the sand, which snap shut when Zero steps on them and drain his energy until he frees himself by wiggling. They can be destroyed, but drop no items.||10||2 (per tick)||Desert||Stocpie (5, Find Shuttle)|
|Sandsnake||Pops up from the ground and spits three small bombs in an arc, with a shorter arc for each bomb. The bombs can be destroyed in the air.||2 (Sandsnake)
|Desert (except Duel in Desert)||Itettle (5, Find Shuttle)|
|Screwdriger||A squid robot that rotates and swims towards Zero in bursts.||2||2||Hidden Base (Stop the Hacking and after)||Bompa (5, Stop the Hacking)|
|Seal Cannon||A small tank that moves along the ceiling or walls and fires small shots at Zero.||4||2 (contact)
|Subway (Destroy Train), Underground Laboratory (Retrieve Data), Hidden Base (Stop the Hacking and after), Factory (Protect Factory), Neo Arcadia Tower, Neo Arcadia Core||Sticker (5, Retrieve Data)|
|Securipider||Spider robots that come in several varieties, moving at one of two speeds and appearing on the floor or ceiling, with some being able to climb on walls. They can lower themselves from the ceiling by a thread and spit projectiles at Zero. Some also launch webs from the ceiling or walls that immobilise him (or Ciel) for a short time.||1 (Securipider)
|Underground Laboratory (Rescue Ciel, Retrieve Data), Factory (Occupy Factory)||Stickle (5, Occupy Factory)|
|Sharkseal||A robot fish that swims straight ahead very fast.||2||2||Hidden Base (Stop the Hacking and after)||Bompu (5, Stop the Hacking)|
|Shellcrawler||A small armoured vehicle that drives around slowly, occasionally charging up and firing a powerful shot. Its armour protects it from most attacks except while charging/firing, though the Z Saber can destroy the armour. If its armour is destroyed, it backs up while firing small projectiles forward.||6||2 (contact)
4 (big shot)
|Desert (Duel in Desert), Hidden Base (Stop the Hacking and after), Factory (Protect Factory)||M-orque (5, Duel in Desert)|
|Spyking||A spike ball that rolls around quickly. It is often dropped on Zero by Carry Arms.||6||2||Disposal Center (except Hittite Hottaid mission), Desert (Duel in Desert)||Birsky (5, Disposal Center mission)|
|Swim Metall RW||A Swim Metall DX that swims with hopping motions and goes through walls. It cannot shoot and never hides under its helmet. Cannot be found normally, but aquatic enemies turn into these if a Metall Cyber-elf has been used.||1||1||None/Any||None|
|TechTwister||A machine creating a dust devil around it. The storm blows Zero away and debris moves around inside, which can harm him or block his attacks. Once destroyed, it remains gone for the rest of the mission.||8||2 (contact)
|Desert (Find Shuttle)||None|
|Top Gabyoall||Moves back and forth on the ground, ceiling or wall, speeding up while Zero is at the same height (or length if on a wall). It cannot be destroyed and attacks only stun it briefly.||N/A||2||Factory (Occupy Factory, Protect Factory), Hidden Base, Subway (Rescue Colbor), Neo Arcadia Core||None|
|Totem Cannon||A mechanical tower with a spiky top that grows up to three segments tall, with segments alternatively popping out cannons that shoot left and right. It cannot be destroyed permanently, but destroying segments enables Zero to jump over it before they grow back.||6 (segment)||1 (contact)
|Disposal Center (except Hittite Hottaid mission)||Gibber (15 segments, Disposal Center mission)|
Minibosses are strong enemies that reside in their own boss arena and block Zero's way until they are defeated. They are sparsely encountered, with only two enemy types that fit the definition (three if including Asura Basura, who is considered a boss in some sources). All minibosses reward Zero with a Cyber-elf the first time they are defeated, and do not respawn or reappear outside of their original mission.
|Metalook||A tall device that slowly moves towards Zero and can be pushed back by attacking it. It can either fire multiple shots or swing a mace around, which goes further with every swing. Only the boiler at the bottom can be harmed, which it exposes while firing projectiles or can be exposed by knocking its top half back with a charged attack.||48||2 (contact)
|Subway (Destroy Train)||Beesus (1, Destroy Train)|
|Pantheon Ace||A pair of mini-bosses that fly around in a wide circle, occasionally firing three projectiles at Zero. When one has been destroyed, the other begins to fly in a figure 8 instead.||32||2 (contact)
|Neo Arcadia Shrine (mission only)||Beefive (2, Neo Arcadia Shrine)|
Bosses are powerful enemies - including Mutos Reploids, giant mechaniloids, the Four Guardians and Copy X - that often mark the end of a mission, or appear at a major turning point in the middle of it. Almost every boss yields a reward, which can be a Cyber-elf or a chip, and most have a specific elemental weakness that causes them to take more damage if hit by a charged attack while Zero has said elemental chip equipped.
Unlike most Mega Man platformers, there is no clear "main" group of bosses in Mega Man Zero, although four of the Mutos Reploids, as well as the Four Guardians, are refought in Neo Arcadia Core, the final stage and mission.
|Aztec Falcon||Disposal Center mission||Thunder Chip||N/A||No|
|Pantheon Core||Destroy Train||Totten||Thunder||No|
|Anubis Necromancess III||Find Shuttle||M-oria||Flame||Yes|
|Maha Ganeshariff||Retrieve Data||Itecle||Thunder||Yes|
|Guard Orotic||Occupy Factory||Flame Chip||None||Yes|
|Hittite Hottaid||Hittite Hottaid mission||Stoctto||None||No|
|Blizzack Staggroff||Find Hidden Base||Ice Chip||Flame||Yes|
|Fefnir||Duel in Desert||Turbo||Thunder||Yes|
|Leviathan||Stop the Hacking||Bomgu||Flame||Yes|
|Asura Basura||Neo Arcadia Shrine||Cloctch||Thunder||No|
|Herculious Anchortus||Neo Arcadia Shrine||Beehoney||Ice||Yes|
|Rainbow Devil||Neo Arcadia Tower||M-orolli||None||No|
|Copy X (phase 1)||Neo Arcadia Core||Nothing||Varies||No|
|Copy X (phase 2)||Neo Arcadia Core||Nothing||Ice||No|
These items can be dropped randomly from enemies or found in the stages:
|Energy (small)||Restores 2 point of health.|
|Energy (large)||Restores 8 point of health.|
|Energy Crystals (small)||Awards 4 Energy Crystals, used mainly for feeding Cyber-elves.|
|Energy Crystals (large)||Awards 16 Energy Crystals, used mainly for feeding Cyber-elves.|
|1 UP||Adds another Continue. Rarely drops from enemies, and cannot be found outside of missions.|
These items can only be found in stages:
|Energy (full)||Refills Zero's health completely, or fills a Sub-Tank. It often replaces 1 UPs when returning to an area without an active mission.|
|Cyber-elf box||Contains a specific Cyber-elf, which is released when breaking it. If the elf has already been collected, its box no longer spawns.|
By defeating certain bosses, Zero can acquire an elemental chip, which he can equip at any time to apply its elemental effect to his charged attacks. Certain bosses or other enemies take different amounts of damage from specific elements, allowing Zero to take them down more quickly by using the appropriate chip. He can also remove the chip and go back to using non-elemental attacks.
|Thunder Chip||Briefly shocks and paralyses enemies. Typically strong against fire-based opponents.||Aztec Falcon|
|Flame Chip||Briefly sets enemies on fire. Typically strong against ice- or water-based opponents.||Guard Orotic|
|Ice Chip||Briefly freezes enemies. Typically strong against electrictiy- or wind-based opponents.||Blizzack Straggroff|
Throughout the game, Zero can find Cyber-elves in boxes or by completing certain objectives, such as defeating specific enemies or bosses. Up to three of these can be equipped via a Trans Server and used individually at any time to assist him in some way, such as restoring health or granting a temporary or permanent bonus. However, using an elf causes it to be lost permanently and gives a score penalty that can lower Zero's rank.
Elves are divided into three main categories, which roughly determine their abilities: Nurse, whose powers revolve around health and healing; Animal, who focus on physical abilities or assisting Zero directly; and Hacker, who can change aspects of a stage or the game, such as boosting Zero's rank or replacing all enemies with Metalls. Further, they can be found in three different sizes, indicated by their icon size in the game menu.
While small Cyber-elves can be equipped and used immediately after obtaining them, larger elves must be raised before they become usable, which is done by feeding them set amounts of Energy Crystals. Medium-sized elves need to be levelled up once in this way, while large elves must be levelled up twice. Larger sizes typically grant more permanent boni.
Note: Elf effects that last for the current mission will also end if Zero aborts a mission, begins a new mission (if he did not have one when he used the elf) or has to retry.
|Nuppie||"I increase vitality slightly."||Increases maximum health by 4, similar to a Heart Tank.||Permanent||Nurse||Medium||750||Rescue Ciel|
|Winkie||"I double your vitality"||Zero's maximum health is doubled.||Permanent||Nurse||Large||1000, 2000||Occupy Factory|
|Mippie||"You want increased vitality?"||Increases maximum health by 4, similar to a Heart Tank.||Permanent||Nurse||Medium||750||Stop the Hacking|
|Reppie||"I'll boost your vitality."||Increases maximum health by 4, similar to a Heart Tank.||Permanent||Nurse||Medium||750||Stop the Hacking|
|Morick||"I can cure you fully!"||Restores health fully.||Instant||Nurse||Small||-||Rescue Colbor|
|Keick||"You want me to cure you fully?"||Restores health fully.||Instant||Nurse||Small||-||Stop the Hacking|
|Lippie||"Sacrifice me for vitality."||Increases maximum health by 4, similar to a Heart Tank.||Permanent||Nurse||Medium||750||Resistance Base|
|Areff||"I can sort of restore vitality."||Restores 8 points of health.||Instant||Nurse||Small||-||Stop the Hacking|
|Coswick||"My power will save you."||Restores health fully.||Instant||Nurse||Small||-||Neo Arcadia Shrine|
|Motolar||"I take hits, and you heal."||Stays close to Zero and can absorb bullets that touch it, restoring Zero's health instead. After a while, it disappears.||Temporary||Nurse||Small||-||Occupy Factory|
|Somack||"It's my duty to heal you."||Restores health fully.||Instant||Nurse||Small||-||Underground Laboratory (after Retrieve Data)|
|Bireff||"Use my energy for vitality."||Restores 8 points of health.||Instant||Nurse||Small||-||Destroy Train|
|Sireff||"I can give a little vitality."||Restores 8 points of health.||Instant||Nurse||Small||-||Rescue Colbor|
|Hapitan||"I turn into a Sub Tank."||Turns into a permanent Sub-Tank, which acts as a life energy reserve that Zero can fill by picking up health while at full HP and drain at a later time, without losing the tank.||Permanent||Nurse||Medium||1200||Subway|
|Nutan||"I can be your Sub Tank."||Turns into a permanent Sub-Tank, which acts as a life energy reserve that Zero can fill by picking up health while at full HP and drain at a later time, without losing the tank.||Permanent||Nurse||Medium||1200||Occupy Factory|
|Dereff||"I can help your wound."||Restores 8 points of health.||Instant||Nurse||Small||-||Rescue Colbor|
|Ereff||"I can heal you slightly."||Restores 8 points of health.||Instant||Nurse||Small||-||Neo Arcadia Shrine|
|Tielar||"I change bullets to vitality."||Stays close to Zero and can absorb bullets that touch it, restoring Zero's health instead. After a while, it disappears.||Temporary||Nurse||Small||-||Stop the Hacking|
|Muelar||"I'll shield and heal you."||Stays close to Zero and can absorb bullets that touch it, restoring Zero's health instead. After a while, it disappears.||Temporary||Nurse||Small||-||Neo Arcadia Shrine|
|Rohealar||"The hits I wake will heal you."||Temporary||Nurse||Small||-||Stop the Hacking|
|Fureff||"You want me to help cure you?"||Restores 8 points of health.||Instant||Nurse||Small||-||Resistance Base|
(blocked off by Hibou)
|Greff||"Sacrifice me to cure yourself."||Restores 8 points of health.||Instant||Nurse||Small||-||Occupy Factory|
|Lubtan||"I'll be a Sub Tank, if needed."||Turns into a permanent Sub-Tank, which acts as a life energy reserve that Zero can fill by picking up health while at full HP and drain at a later time, without losing the tank.||Permanent||Nurse||Medium||1200||Find Shuttle|
|Nebitan||"Sacrifice me for a Sub Tank."||Permanent||Nurse||Medium||1200||Find Hidden Base|
|Hareff||"Health for you, death for me."||Restores 8 points of health.||Instant||Nurse||Small||-||Neo Arcadia Tower|
|Ireff||"My power will help heal you!"||Restores 8 points of health.||Instant||Nurse||Small||-||Neo Arcadia Shrine|
|Gireff||"I can give you some vitality."||Restores 8 points of health.||Instant||Nurse||Small||-||Disposal Center mission|
(Destroy 5 Pantheon Hunters)
|Turbo||"I'll teach you how to run fast."||Increases running speed.||Permanent||Animal||Medium||1000||Duel in Desert (Defeat Fefnir)|
|Shelter||"I'll boost your defense."||Increases defence, cutting damage taken in half.||Permanent||Animal||Large||500, 1500||Find Hidden Base (Destroy 3 Battleattle Bros)|
|Gibber||"Climbing is my specialty!"||Increases ladder climbing speed.||Permanent||Animal||Medium||200||Disposal Center mission (Destroy 15 Totem Cannon segments)|
|Ribbid||"I'll help you defy gravity!"||Zero slides down walls more slowly.||Permanent||Animal||Medium||400||Occupy Factory (Destroy 5 C-Hoppers)|
|Buffer||"You'll never fall with me!"||No knock-back when hit by enemies.||Permanent||Animal||Medium||750||Destroy Train (Destroy 5 Pantheon Warriors)|
|Birsky||"I'll save you from a pit."||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Disposal Center mission (Destroy 5 Spykings)|
|Birtack||"I must save those who fall!"||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Hittite Hottaid mission (Destroy 20 Gli-Eyes)|
|Birdian||"I'll save you from a pit fall!"||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Destroy Train (Destroy 5 Rayvens)|
|Birtross||"I'll help you out of a hole."||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Rescue Colbor (Destroy 5 Pantheon Fliers)|
|Birfly||"I'll get you out of any pit!"||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Find Shuttle (Destroy 5 Condoloids)|
|Sticker||"I stun certain enemies."||Orbits Zero and homes in on nearby enemies, clinging to them and stunning them.||Mission||Animal||Small||-||Retrieve Data (Destroy 5 Seal Cannons)|
|Bomga||"I explode on your enemies!"||Stays close to Zero and can absorb bullets that touch it. After absorbing enough, it explodes, damaging enemies.||Mission||Animal||Small||-||Retrieve Data (Destroy 5 Colppers)|
|Stickon||"I can stun certain enemies."||Orbits Zero and homes in on nearby enemies, clinging to them and stunning them.||Mission||Animal||Small||-||Protect Factory (Destroy 5 Garms)|
|Birrair||"I'll help you out of any hole."||Orbits Zero and will save him from a bottomless pit if active, but only once.||Mission||Animal||Small||-||Neo Arcadia Tower (Destroy 6 Gyro Cannons)|
|Bomgu||"I can use bullets to explode!"||Stays close to Zero and can absorb bullets that touch it. After absorbing enough, it explodes, damaging enemies.||Mission||Animal||Small||-||Stop the Hacking (Defeat Leviathan)|
|Bompa||"I'll eat bullets and burst!"||Stays close to Zero and can absorb bullets that touch it. After absorbing enough, it explodes, damaging enemies.||Mission||Animal||Small||-||Stop the Hacking (Destroy 5 Screwdrigers)|
|Beesus||"I'll give you cover fire."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Destroy Train (Defeat Metalook)|
|Stickle||"Your enemy can't shake me!"||Orbits Zero and homes in on nearby enemies, clinging to them and stunning them.||Mission||Animal||Small||-||Occupy Factory (Destroy 5 Securipiders)|
|Bompu||"Bullets make me explode!"||Mission||Animal||Small||-||Stop the Hacking (Destroy 5 Sharkseals)|
|Sticken||"Use me to stun your enemies."||Orbits Zero and homes in on nearby enemies, clinging to them and stunning them.||Mission||Animal||Small||-||Hanumachine mission (Destroy 5 Hanumachine spawns)|
|Beedle||"I'll help you fight enemies."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Rescue Colbor (Defeat Harpuia)|
|Beenet||"My weapon will give you cover."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Occupy Factory (Destroy 5 Barrier Counters)|
|Beehoney||"I'll shoot at your attackers."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Neo Arcadia Shrine (Defeat Herculious Anchortus)|
|Beefive||"I'll provide backup."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Neo Arcadia Shrine (Defeat Pantheon Aces)|
|Beevoize||"My bullets provide backup."||Orbits Zero and shoots at enemies.||Mission||Animal||Small||-||Resistance Base (while at A/S rank)|
|Eenite||"I'll erase the small enemies!"||Removes all minor enemies.||Mission||Hacker||Medium||1250||Hanumachine mission (Defeat Hanumachine)|
|Totten||"I help in the damage zone."||Makes all instant-death spikes harmless.||Permanent||Hacker||Large||1500, 3000||Destroy Train (Defeat Pantheon Core)|
|Kenite||"I can rub out small enemies!"||Removes all minor enemies.||Mission||Hacker||Medium||1250||Find Shuttle (Destroy 2 Cameloids)|
|Hafmargo||"I reduce a boss's energy!"||Cuts the current boss's HP in half.||Mission||Hacker||Medium||1000||Destroy Train (Destroy 3 Rolling Crushers)|
|Hafmarda||"I can cut a boss's energy!"||Cuts the current boss's HP in half.||Mission||Hacker||Medium||1000||Protect Factory (Defeat Phantom)|
|Stoccue||"I'm able to stun enemies."||Temporarily stuns all enemies.||Temporary||Hacker||Small||-||Rescue Ciel (Destroy 5 Kumotials)|
|Clocka||"I can slow time."||Slows down the game timer, affecting time limits and mission clear time.||Mission||Hacker||Small||-||Resistance Base (from Andrew)|
|Itecle||"Enemies will drop an item."||Enemies always drop items.||Mission||Hacker||Small||-||Retrieve Data (Defeat Maha Ganeshariff)|
|M-orell||"I'll turn foe into Mettalls."||Minor enemies are replaced with Metall SV, Heli Metall SV and Swim Metall SV.||Mission||Hacker||Small||-||Find Hidden Base|
|Stocchu||"I can stun certain enemies."||Temporarily stuns all enemies.||Temporary||Hacker||Small||-||Rescue Ciel (Destroy 5 Pantheon Guardians)|
|Clocta||"To slow time, just ask me!"||Slows down the game timer, affecting time limits and mission clear time.||Mission||Hacker||Small||-||Stop the Hacking|
|Itemon||"Small foe will drop an item."||Enemies always drop items.||Mission||Hacker||Small||-||Destroy Train (Destroy 5 Kerberos)|
|M-oria||"I'll make foe into Mettalls."||Minor enemies are replaced with Metall SV, Heli Metall SV and Swim Metall SV.||Mission||Hacker||Small||-||Find Shuttle (Defeat Anubis Necromancess)|
|Stoctto||"I'll stun enemies for you."||Temporarily stuns all enemies.||Temporary||Hacker||Small||-||Hittite Hottaid mission (Defeat Hittite Hottaid)|
|Cloctch||"I'll give you more time."||Slows down the game timer, affecting time limits and mission clear time.||Mission||Hacker||Small||-||Neo Arcadia Shrine (Defeat Asura Basura)|
|Itettle||"Use my power to get items."||Enemies always drop items.||Mission||Hacker||Small||-||Find Shuttle (Destroy 5 Sand Snakes)|
|M-orque||"I can turn foe into Mettalls."||Minor enemies are replaced with Metall SV, Heli Metall SV and Swim Metall SV.||Mission||Hacker||Small||-||Duel in Desert (Destroy 5 Shellcrawlers)|
|Stocpie||"Enemies will get stunned!"||Temporarily stuns all enemies.||Temporary||Hacker||Small||-||Find Shuttle (Destroy 5 Sandjawses)|
|Clocpah||"Use my power for more time."||Slows down the game timer, affecting time limits and mission clear time.||Mission||Hacker||Small||-||Rescue Ciel|
|Itepon||"I'll make foe drop items!"||Enemies always drop items.||Mission||Hacker||Small||-||Stop the Hacking|
|M-orekka||"Enemies'll turn into Mettalls!"||Minor enemies are replaced with Metall SV, Heli Metall SV and Swim Metall SV.||Mission||Hacker||Small||-||Stop the Hacking|
|Stocpoh||"My power can stun enemies."||Temporarily stuns all enemies.||Temporary||Hacker||Small||-||Neo Arcadia Shrine|
|Clocpooh||"Count on me to get more time."||Slows down the game timer, affecting time limits and mission clear time.||Mission||Hacker||Small||-||Disposal Center mission|
|Iteron||"Please use me to get items!"||Enemies always drop items.||Mission||Hacker||Small||-||Neo Arcadia Shrine|
|M-orolli||"I turn foe into Mettalls."||Minor enemies are replaced with Metall SV, Heli Metall SV and Swim Metall SV.||Mission||Hacker||Small||-||Neo Arcadia Tower (Defeat Rainbow Devil)|
|Jackson||"Hold Jump Button for supremacy!"||Enables Zero to become invincible for a short time by holding down the jump button.
Obtained as a reward for beating the game with all Cyber-elves at max level, and having used either none or all of them.
Rather than a straightforward stage system like most Mega Man games, Mega Man Zero consists of a mostly connected world map and is divided into Missions. These Missions take place in certain areas of the map, usually warping Zero to this area when the Mission starts, and multiple may take place in the same area. The exact layout and enemies present in each area depend on the active Mission, and may also be different if the area is revisited without a Mission.
Most Missions must be accepted from Ciel, although some will start automatically when certain conditions are met or when Zero enters an area for the first time. Many Missions are optional and can be failed permanently if Zero chooses to give up or loses all of his lives, which advances the story regardless, but deprives Zero of any items and other benefits that he would have acquired by completing the Mission.
|Rescue Ciel||Underground Laboratory||Golem||None||No||Starts after the intro.|
|Disposal Center mission (unnamed)||Disposal Center||Aztec Falcon||Rescue Ciel||No|
|Destroy Train||Subway||Pantheon Core||Disposal Center mission||Yes|
|Find Shuttle||Desert||Anubis Necromancess III||Disposal Center mission||Yes|
|Retrieve Data||Underground Laboratory||Maha Ganeshariff||Disposal Center mission||Yes|
|Occupy Factory||Factory||Guard Orotic||Destroy Train||Yes|
|Hittite Hottaid mission (unnamed)||Disposal Center||Hittite Hottaid||6 Missions||No||Starts automatically.|
|Rescue Colbor||Subway||Harpuia||Destroy Train||Yes|
|Duel in Desert||Desert||Fefnir||Find Shuttle||Yes|
|Find Hidden Base||Desert, Hidden Base||Blizzack Staggroff||Find Shuttle||Yes|
|Stop the Hacking||Hidden Base||Leviathan||Find Hidden Base||Yes|
|Protect Factory||Factory||Phantom||Occupy Factory||Yes|
|Hanumachine mission (unnamed)||Hidden Base||Hanumachine||All missions except Neo Arcadia||No||Starts automatically.|
|Neo Arcadia Shrine (unnamed)||Neo Arcadia Shrine||Herculious Anchortus||Hanumachine mission||No||Starts by entering the area.|
|Neo Arcadia||Neo Arcadia Tower||Rainbow Devil||Neo Arcadia Shrine||No||Starts by entering the area.|
|Neo Arcadia Core||Neo Arcadia Core||Copy X||Neo Arcadia||No||Starts by entering the area.|
- Mega Man Zero English Instruction Booklet
- Mega Man Zero Official Complete Works, p. 64