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MMKB
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A key is an object designed to open or close a lock. Keys appeared as items in several games from the Mega Man franchise with different shapes and purposes, usually as an item required to open a locked door to access a new area.

A typical key is a small piece of metal which slides into the keyway of the lock to open. Card keys are flat, rectangular cards that store a physical or digital signature, which can be used to disengage a card key lock. In the Mega Man Battle Network series, passcodes serve a similar purpose in the Cyberworld by giving access to an area.

Appearances[]

Mega Man X: Command Mission[]

Item Description Details
Security Card Card key for entering Data Backup Room, Hall A. Obtained in Central Tower during Chapter 2.
Lagrano Key
Unlocks a door leading to a hidden area somewhere in Lagrano Ruins. Optional item obtained in the Deployment Center. Opens an area in Lagrano Ruins containing shops with several unique items.
Tianna Key
Unlocks a door leading to a hidden area somewhere in Tianna Camp. Optional item obtained in the Deployment Center. Opens an area in Tianna Camp containing the boss Rafflesian and X's Ultimate Armor Hyper Mode.
Gimialla Key
Unlocks a door leading to a hidden area somewhere in Gimialla Mine. Optional item obtained in the Deployment Center. Openas an area in the Gimialla Mine containing enemies that give more Zenny. The area also contains a Gold Blader for the Deployment Center and the enemy Mettaur Gigant.
Melda Key
Unlocks a door leading to a hidden area somewhere in Melda Ore Plant. Optional item obtained in the Deployment Center. Opens an area containing the boss Duckbill Mole and Zero's Absolute Zero Hyper Mode.
Central Key
Unlocks a door leading to a hidden area somewhere in Central Tower. Obtained after completing the game. Gives access to the deepest part of Central Tower, where the powerful Ninetails awaits.
Bone Key
A bone-shaped key with a switch. Might be able to start up a Mechaniloid. Can be found in Gaudile Laboratory. It's required to activate a Dober Man to recruit him for the Deployment Center.
X8 Trial Key
Play a trial version of Mega Man X8. Save and return to the Title Screen menu to play. Found in an Item Box from Central Tower in the PlayStation 2 version of the game. Unlocks a demo of Mega Man X8.

Mega Man Zero 4[]

Card Key

Zero can use the Zero Knuckle on the NicosCrabC in the lower path from the Hibernation Chamber to take its Card Key, which opens a door that leads to a Sub Tank. It is immediately destroyed when used to attack an enemy, so the player must keep it until the locked door.

Mega Man ZX[]

While performing missions to the Guardians, Vent / Aile obtain card keys that grant them access to new areas.

Item Description
Y Card Key Yellow Card Key It's easy to guess this unlocks yellow doors.
Green Card Key Green Card Key It can only be assumed this opens green doors.
Red Card Key Red Card Key This probably opens red doors.
Blue Card Key Blue Card Key It should come as no surprise that this goes to blue doors.
Purple Card Key Purple Card Key Obviously this key goes to purple doors.

The game also contains one unused card key:

Item Description
White Card Key White Card Key It doesn't take a genius to figure out this opens white doors.

Mega Man ZX Advent[]

Grey / Ashe obtain two card keys to open doors in the Hunter's Camp. The game also contains an initialization key to activate a transerver. In a sidequest, the Hunter Richard lends a Firing Range Key to let the player fight an horde of .

Item Description
Red Card Key Opens a certain red door in Hunter's Camp.
Green Card Key Opens a certain green door in Hunter's Camp.
Init. Key Obtained by analyzing Data File A and B. It's used to operate a certain transerver.
Firing Range Key Was given to you by Richard in Hunter's Camp3.

Mega Man Legends[]

Keys are Special Items used by Mega Man Volnutt to open locks.

Name Description Details
10 Citizen's Card
(市民カード)
Needed to use city gates Given by an officer after receiving the Splash Mine. Allows Mega Man to enter the different areas from Kattelox Island's city.
14 Bonne Family Key
(ボーン一家の鍵)
Needed to open locked door When the Bonne family attacked the island, they locked the path between Downtown and City Hall. Mega Man must defeat the Blumebear carrying the key to proceed.
15 Cardon Forest Sub-Gate Key
(カードンの森のサブゲートの鍵)
Key found at Cardon Forest ruins Three Starter Keys scattered in the Cardon Forest Sub-Gate. Required to obtain the Refractor in the ruins.
16 Lake Jyun Sub-Gate Key
(ジュウイン湖のサブゲートの鍵)
Key found at Lake Jyun ruins Three Starter Keys inside chests from the Lake Jyun Sub-Gate.
17 Clozer Woods Sub-Gate Key
(クローサーの森のサブゲートの鍵)
Key found at Clozer Woods ruins Three ID Cards found inside chests from the Clozer Woods Sub-Gate.
18 Sub-City Key
(地下都市の鍵)
Key found in underground city Three keys (Dreamer, Sleeper and Watcher) located in each of the three Sub-Cities. They are required to access the deepest part of the Main Gate.

Mega Man Legends 2[]

X8NavigatorAlertIconEdit This section requires expansion.

Hangekal

Name Game description
First Key Key to the Mother Lode; found on Manda Island.
Second Key Key to the Mother Lode; found on Nino Island.
Third Key Key to the Mother Lode; found on Saul Kada Island.
Fourth Key Key to the Mother Lode; found on Calinca.
Blue Card Key Magnetic card key.
Door Card Key 1 Key used to open one of the doors inside Glyde's base.
Door Card Key 2 Key used to open one of the doors inside Glyde's base.
Door Card Key 3 Key used to open one of the doors inside Glyde's base.
Door Card Key 4 Key used to open one of the doors inside Glyde's base.
Water Key 1 Door key.
Water Key 2 Door key.
Blue Bonne Key Blue key shaped like the Bonne family symbol.
Red Bonne Key Red key shaped like the Bonne family symbol.
First Floor Key Key taken from the giant Reaverbot used to unlock first floor door.
Train Key Key needed to unlock train.
Blue Barrier Key Key used to deactivate blue barrier.
Red Barrier Key Key used to deactivate red barrier.
Last Room Key 1 Key needed to enter Library.
Last Room Key 2 Key needed to enter Library.
Last Room Key 3 Key needed to enter Library.

The Misadventures of Tron Bonne[]

Card keys are used by the Servbots in the Shala-Kun Ruins.

Name Description
Card Key
(カードキー)
Card key used for opening treasure chests in the Shala-Kun ruins.
Gate Key
(ゲートキー)
Key used for opening gates in the Shala-Kun ruins.
Room Key
(ルームキー)
Key used for opening rooms in the Shala-Kun ruins.

Mega Man Battle Network[]

Item Description
@Mayl The net address of the piano in Mayl's house.
@Yai The net address of the portrait in Yai's house.
@Dex The net address of the computer in Dex's house.
@Dad The net address of Dad's computer down at the SciLab.
@Sal The net address of the cash register at Sal's lunch stand.
@Miyu The net address of the magnifying glass at Miyu's Antiques.
@Masa The net address of Masa's fish stand.
@WWW The net address of the WWW Labs.

Mega Man Battle Network 2[]

Item Description
YumKey A key to the door that guards the treasure of Yumland
CyberKey A key to a door in the Cyberworld of the castle
GateKeyA A key to the gate at the entrance of the Square
GateKeyB A key to the gate at the entrance of Yumland Square
GateKeyC A key to the gate at the entrance of Netopia Square
GateKeyD A key to the gate at the entrance of Kotobuki Square
MaylCode File containing the passcode to get from Mayl's PC to the Net
DexCode File containing the passcode to get from Dex's PC to the Net
YaiCode File containing the passcode to get from Yai's PC to the Net
RibiCode File containing the passcode to get from Ribitta's PC to Net
RaulCode File containing the passcode to get from Raoul's PC to Net
MiliCode File containing the passcode to get from Millions' PC to Net
ONBACode Opens a cube run by Netopia's Official NetBattlers
GospCode Opens a cube run by a mysterious organization

Mega Man Battle Network 3[]

Item Description
A KeydataA
(キーデータ A, "Key Data A")
This data can bypass the lock on the Principal's PC!
B KeydataB
(キーデータ B, "Key Data B")
This data can bypass the lock on the Principal's PC!
C KeydataC
(キーデータ C, "Key Data C")
This data can bypass the lock on the Principal's PC!
Password A PasswrdA
(パスワードA, "Password A")
This password can bypass the lock on the Principal's PC!
Password B PasswrdB
(パスワードB, "Password B")
This password can bypass the lock on the Principal's PC!
Password C PasswrdC
(パスワードC, "Password C")
This password can bypass the lock on the Principal's PC!
Basement Key BsmntKey
(地下室のカギ, "Basement Key")
This key opens the door to the basement of Seaside Hospital!
Card Key CardKey
(カードキー, "Card Key")
It looks like a key to some lock... But I wonder which one?
C MaylCode
(メイルのPコード, "Meiru's P Code")
This file has the passcode from the Net to Mayl's PC!
C DexCode
(デカオのPコード, "Dekao's P Code")
This file has the passcode from the Net to Dex's PC!
C YaiCode
(やいとのPコード, "Yaito's P Code")
This file has the passcode from the Net to Yai's PC!
C TamaCode
(たま子のPコード, "Tamako's P Code")
This file has the passcode from the Net to Tamako's PC!
C HospCode
(WHPコード, "WH P Code")
This file has the passcode from the Net to Hosp Comp 2!

Mega Man Battle Network 4[]

Item Description
ShukoKey It's a key for getting into Shuko's Area!
FireID Looks like a key for opening a door on the Net somewhere
GateData A key to the door that leads to Tamako's master
ChefKey A key to a Cooking Dojo on the Net!
KeyDataA It's key-shaped data that will activate if we get all four
KeyDataB It's key-shaped data that will activate if we get all four
KeyDataC It's key-shaped data that will activate if we get all four
KeyDataD It's key-shaped data that will activate if we get all four
TrashKey A key to the garbage dump in YumLand Area.
LionKey A key for opening the doors set up NetFricaArea.
CopyKey A key to open up the bad guys' hangout
TownKyDt It's a key for the door in Town2
MaylCode Text with the code for connecting to Mayl's HP
DexCode Text with the code for connecting to Dex's HP
YaiCode Text with the code for connecting to Yai's HP
JomonCd Text with the code for connecting to Jomon Elec's page
CastlPCd Text with the code for connecting to Castillo's HP!
HotelPCd Text with the code for connecting to Netopia Hotel page
YumLandC Text with the code for connecting to YumLand StatueComp
NetFricC Text with the code for connecting to NupopoComp
SharoCd Text with the code for connecting to Sharo computer!

Mega Man Battle Network 5[]

Item Description
MineKey Data for the mine area's electronic lock on Oran Isle.
StopKey Key for starting the device that controls rock supply.
SciKey Key to open a security door run by SciLab.
OldKey This key-shaped data is quite heavy and appears very old.
MaylCode Text with the code for connecting to Mayl's HP.
DexCode Text with the code for connecting to Dex's HP.
YaiCode Text with the code for connecting to Yai's HP.
CasPCode Text with the code for connecting to GargCastleHP.
OldPCode Text with the code for connecting areas.


Mega Man Battle Network 6[]

X8NavigatorAlertIconEdit This section requires expansion.
Name Description
KeyData Key to open door between CentralArea2 and CentralArea3.
SeaSdKey Key to open the cyberdoor in SeasideArea3.

Mega Man Star Force[]

X8NavigatorAlertIconEdit This section requires expansion.
Name Description Details
RedKey
(レッドキー)
Red key for doors in Truck Comp.
BlueKey
(ブルーキー)
Blue key for doors in Truck Comp.
YelloKey
(イエローキー, "Yellow Key")
Yellow key for doors in Truck Comp.
TetKeyA
(テトラキーA, "Tetra Key A")
One key in a set for TruckComp doors.
TetKeyB
(テトラキーB, "Tetra Key B")
One key in a set for TruckComp doors.
TetKeyC
(テトラキーC, "Tetra Key C")
One key in a set for TruckComp doors.
TetKeyD
(テトラキーD, "Tetra Key D")
One key in a set for TruckComp doors.
KeyCard
(トビラカード, "Door Card")
KeyMan's Navi Card.
Use this card to have KeyMan open doors for you.

Mega Man Star Force 2[]

Mega Man must obtain the Whazzap Key (shortened WhzzpKey in-game, ナンスカへのカギ, "Key to Nanska" in Japan) to open the door to Whazzap.

Other media[]

MMNTW Waterworks Key

A card key in MegaMan NT Warrior

A card key appeared in MegaMan NT Warrior.

The Short Circuits from Mega Man #49 has a Robot Master named I Can't Find My Keys, Man!. As his name implies, he can't find his keys.

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