Editing Password

{{Show card image|Blue-Eyes White Dragon|caption="[[Blue-Eyes White Dragon]]", with its password, 89631139, visible in the lower-left corner of the card.}}
A '''password''' is the eight-digit number printed in the bottom-left corner on most ''[[OCG]]''/''[[TCG]]'' cards (certain cards, such as "[[Gate Guardian]]", [[#Cards printed without a password|do not have a password]], and some cards instead have [[limitation text]] in this spot). The password for a card is always the same in all languages and all prints of that card, including [[alternate artwork]] versions, except for twp ("[[Dark Magician]]" has an [[Dark Magician (Arkana)|Arkana version]], and "[[Polymerization]]" has an [[Polymerization (alternate password)|alternate artwork]] version, both with [[Alternate password|different passwords]] from their main versions). Because of this consistency, passwords can be useful for identifying cards.

<!-- TODO move most of the VG stuff here down to a dedicated "Video games" section with the current VG-related sections as subsections -->
Passwords, while serving no real purpose in the ''OCG''/''TCG'', are used in some video games. By entering a card's password (usually in a "Password" screen), the player may obtain that card for their virtual collection. This usually has various restrictions. In most games, this can only be done once per card. In some games the player will be given the card for free, while in others the player must also pay in-game currency. In later games, players must already have the card in their card list, either by owning at least one copy of it, or by owning most of the other cards in the set the desired card is from.

''[[Yu-Gi-Oh! Duel Monsters]]'' and ''[[Yu-Gi-Oh! The Duelists of the Roses]]'' use their own passwords for cards. ''Duel Monsters'' has [[#Duel Monsters passwords|nine passwords]], spelled with kana and used to unlock nine of the 15 secret monsters; each password is the name of a staff member who worked on the game or on the [[Yu-Gi-Oh! (manga)|manga]] at [[Shueisha]] at the time. In ''The Duelists of the Roses'', the passwords are mostly alphanumeric, and all of the game's [[List of Yu-Gi-Oh! The Duelists of the Roses cards|854 cards]] have a password, though 120 of them are [[#Unusable The Duelists of the Roses passwords|unusable]].

Several video games use passwords for things [[#Non-card passwords|other than unlocking cards]]; for example, ''[[Yu-Gi-Oh! Dark Duel Stories]]'' has passwords that unlock Stage 5 characters, a password that makes Grandpa give the player an extra card after every Duel, and a password to immediately view the credits. ''Dark Duel Stories'' also has [[#Unusable Dark Duel Stories passwords|106 unusable card passwords]] which produce a custom error message when entered; several of these passwords have never been associated with cards in the ''OCG''/''TCG'' or in other video games.

Passwords are not featured in the anime or the manga, or in other real-life games such as ''[[Yu-Gi-Oh! Rush Duel]]'', ''[[Yu-Gi-Oh! Bandai's Official Card Game]]'', ''[[Yu-Gi-Oh! Dungeon Dice Monsters]]'', or [[collector's cards]].

== List of passwords ==
There are currently {{hardcoded query|{{formatnum:{{ #ask: [[Password::+]][[Concept:CG cards]] | format=count }}}}}} cards with a password. The card with the lowest-value password is currently "{{hardcoded query|{{ #show: {{ #vardefineecho: card | {{ #ask: [[Password::+]][[Concept:CG cards]] |sort=Password |order=asc |limit=1 |link=none |searchlabel= }} }} |?English name (linked) }}}}" ({{hardcoded query|{{ #show: {{ #var: card }} |?Password }}}}), and the card with the highest-value password is currently "{{hardcoded query|{{ #show: {{ #vardefineecho: card | {{ #ask: [[Password::+]][[Concept:CG cards]] |sort=Password |order=desc |limit=1 |link=none |searchlabel= }} }} |?English name (linked) }}}}" ({{hardcoded query|{{ #show: {{ #var: card }} |?Password }}}}).
{{Card query|[[Password::+]]|medium=official|extra_column=Password|sort=Password|limit=15}}

== Cards printed without a password ==
{{Multiple image
| width  = 200
| image1 = CosmoQueen-YS13-EN-C-1E.png
| image2 = CosmoQueen-LCYW-EN-UR-1E.png
| footer = "[[Cosmo Queen]]", an example of a card printed both without (left) and with (right) a password.
}}

A number of cards have been printed in the ''[[OCG]]'' and ''[[TCG]]'' without a password. Almost all of these cards already have passwords in various early video games, and most been reprinted with their passwords later on. [[Sphere Mode]] appeared in ''[[Reshef of Destruction]]'', and is the only card among the 800 to not have a password. Only two cards which made their first appearance in any game media after 2003 specifically do not have a password.

Very few legal cards (7) do not have a password at all. All but one of them are either [[DIVINE]]-attribute (2), or are the original [[Normal Monster]] counterparts of early [[Ritual Monsters]] (4). Only one such card has a [[TCG]] release, and the four Normal counterparts are one-of-a-kind cards unavailable to the general public.

All illegal cards do not have a password at all, except for one Korean-language print. 

[[Giant Card]] and [[Official Proxy]] prints never have a password, though some of them do have [[limitation text]]; any cards which are only missing a password in Giant Card or Official Proxy prints are not listed here. [[Counter]]s, [[Monster Token|Token]]s, [[Skill Card]]s, and [[Boss Duel]] cards also lack printed passwords, and are also not listed here, though they are members of [[:Category:Cards printed without a password]].
{{-}}
{| class="wikitable sortable"
|-
! scope="col" | Card
! scope="col" | [[Limitation text]]
! scope="col" | Reprinted with password?
! scope="col" | Password
|-
| "[[Aggiba, the Malevolent Sh'nn S'yo]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Amatsu-Okami of the Divine Peaks]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Armament of the Lethal Lords]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Beastly Mirror Ritual]]"
| 
| {{no}}
| [[81933259]]<ref name="vg only" group="n" />
|-
| "[[Black Luster Ritual]]"
| 
| {{yes}}
| [[55761792]]
|-
| "[[Black Luster Soldier]]"
| 
| {{yes}}
| [[05405694]]
|-
| "[[Black Luster Soldier (Normal)|Black Luster Soldier]]" (Normal)
| 
| {{no}}
| 
|-
| "[[Black Magic Ritual]]"
| 
| {{yes}}
| [[76792184]]
|-
| "[[Black Skull Dragon]]"
| 
| {{no}}
| [[11901678]]<ref name="vg only" group="n" />
|-
| "[[Blue-Eyes Ultimate Dragon]]"
| 
| {{yes}}
| [[23995346]]
|-
| "[[Card of Last Will]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Chakra]]"
| 
| {{no}}
| [[65393205]]<ref name="vg only" group="n" />
|-
| "[[Chimaera, the Master of Beasts]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Cocoon of Evolution]]"
| 
| {{no}}
| [[40240595]]<ref name="vg only" group="n" />
|-
| "[[Command Duel-Use Card]]"
| This card cannot be in a Deck.
| {{no}}
| 
|-
| "[[Commencement Dance]]"
| 
| {{no}}
| [[43417563]]<ref name="vg only" group="n" />
|-
| "[[Cosmo Queen]]"
| 
| {{yes}}
| [[38999506]]
|-
| "[[Crab Turtle]]"
| 
| {{no}}
| [[91782219]]<ref name="vg only" group="n" />
|-
| "[[Creator of Hope]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Creator of Miracles]]"
| This card cannot be used in a Duel.
| {{yes|Yes<ref name="Korea reprint" group="n">Only in Korea.</ref>}}
| [[60087721]]
|-
| "[[Dark Magician Girl]]"
| 
| {{yes}}
| [[38033121]]
|-
| "[[Dian Keto the Cure Master]]"
| 
| {{yes}}
| [[84257639]]
|-
| "[[Dokurorider]]"
| 
| {{no}}
| [[99721536]]<ref name="vg only" group="n" />
|-
| "[[Duelist ID Card]]"
| <nowiki>http://yugioh-card.com</nowiki>
| {{no}}
| 
|-
| "[[Duelist Kingdom (card)|Duelist Kingdom]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Duelist Name Card]]"
| <nowiki>http://yugioh-card.com</nowiki>
| {{no}}
| 
|-
| "[[Emperor of Lightning]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Everyone's King]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[E☆HERO Pit Boss]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Fiend's Mirror]]"
| 
| {{No}}
| [[31890399]]<ref name="vg only" group="n">Only in video games.</ref>
|-
| "[[Fiend's Mirror (Normal)|Fiend's Mirror]]" (Normal)
| 
| {{no}}
| 
|-
| "[[Firewing Pegasus]]"
| 
| {{no}}
| [[27054370]]<ref name="vg only" group="n" />
|-
| "[[Fortress Whale]]"
| 
| {{yes}}
| [[62337487]]
|-
| "[[Fortress Whale's Oath]]"
| 
| {{yes}}
| [[77454922]]
|-
| "[[Garma Sword]]"
| 
| {{yes}}
| [[90844184]]
|-
| "[[Garma Sword Oath]]"
| 
| {{yes}}
| [[78577570]]
|-
| "[[Gate Guardian]]"
| 
| {{yes|Yes<ref name="Korea reprint" group="n" />}}
| [[25833572]]
|-
| "[[Gatebridgeo the Waterfront Warbeast]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Get Your Game On!]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Glory of the King's Hand]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Grandopolis, The Eternal Golden City]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Great Moth]]"
| 
| {{no}}
| [[14141448]]<ref name="vg only" group="n" />
|-
| "[[Grizzly, the Red Star Beast]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Hamburger Recipe]]"
| 
| {{no}}
| [[80811661]]<ref name="vg only" group="n" />
|-
| "[[Holactie the Creator of Light]]"
| 
| {{no}}
| 
|-
| "[[Hungry Burger]]"
| 
| {{no}}
| [[30243636]]<ref name="vg only" group="n" />
|-
| "[[Iron Knight of Revolution]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Javelin Beetle]]"
| 
| {{no}}
| [[26932788]]<ref name="vg only" group="n" />
|-
| "[[Javelin Beetle Pact]]"
| 
| {{no}}
| [[41182875]]<ref name="vg only" group="n" />
|-
| "[[Juno, the Celestial Goddess]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Kaiser Eagle, the Heavens' Mandate]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Kazejin]]"
| 
| {{no}}
| [[62340868]]<ref name="vg only" group="n" />
|-
| "[[King Landia the Goldfang]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[King of Destruction - Xexex]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Kuzunoha, the Onmyojin]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Labyrinth Wall]]"
| 
| {{no}}
| [[67284908]]<ref name="vg only" group="n" />
|-
| "[[Larvae Moth]]"
| 
| {{no}}
| [[87756343]]<ref name="vg only" group="n" />
|-
| "[[Legendary Dragon of White]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Legendary Magician of Dark]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Leonardo's Silver Skyship]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Lorelei, the Symphonic Arsenal]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Magi Magi ☆ Magician Gal]]"
| 
| {{no}}
| 
|-
| "[[Magician of Black Chaos]]"
| 
| {{yes}}
| [[30208479]]
|-
| "[[Masahiro the Dark Clown]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Masterful Magician, Servant of the Sanctuary]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Meteo the Matchless]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Meteor Black Dragon]]"
| 
| {{yes|Yes<ref name="Korea reprint" group="n" />}}
| [[90660762]]
|-
| "[[Meteor Dragon]]"
| 
| {{yes}}
| [[64271667]]
|-
| "[[Mikazukinoyaiba]]"
| 
| {{no}}
| [[38277918]]<ref name="vg only" group="n" />
|-
| "[[Noritoshi in Darkest Rainment]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Novox's Prayer]]"
| 
| {{no}}
| [[43694075]]<ref name="vg only" group="n" />
|-
| "[[Obelisk the Tormentor]]"
| This card cannot be used in a Duel.<ref name="giant card" group="n">[[Giant Card]] prints only.</ref>
| {{no}}
| 
|-
| "[[Obelisk the Tormentor (original)|Obelisk the Tormentor]]" (original)
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Perfectly Ultimate Great Moth]]"
| 
| {{no}}
| [[48579379]]<ref name="vg only" group="n" />
|-
| "[[Performance of Sword]]"
| 
| {{no}}
| [[04849037]]<ref name="vg only" group="n" />
|-
| "[[Queen Nereia the Silvercrown]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Queen of Fate - Eternia]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Rabid Horseman]]"
| 
| {{no}}
| [[94905343]]<ref name="vg only" group="n" />
|-
| "[[Resurrection of Chakra]]"
| 
| {{no}}
| [[39399168]]<ref name="vg only" group="n" />
|-
| "[[Revival of Dokurorider]]"
| 
| {{no}}
| [[31066283]]<ref name="vg only" group="n" />
|-
| "[[Sakyo, Swordmaster of the Far East]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Sanctity of Dragon]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Sanga of the Thunder]]"
| 
| {{no}}
| [[25955164]]<ref name="vg only" group="n" />
|-
| "[[Seiyaryu]]"
| 
| {{no}}
| [[06740720]]<ref name="vg only" group="n" />
|-
| "[[Sengenjin]]"
| 
| {{yes}}
| [[76232340]]
|-
| "[[Serpent Night Dragon]]"
| 
| {{no}}
| [[66516792]]<ref name="vg only" group="n" />
|-
| "[[Set Sail for The Kingdom]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Shadow Ghoul]]"
| 
| {{no}}
| [[30778711]]<ref name="vg only" group="n" />
|-
| "[[Shelga, the Tri-Warlord]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Skull Guardian]]"
| 
| {{no}}
| [[03627449]]<ref name="vg only" group="n" />
|-
| "[[Skull Knight]]"
| 
| {{no}}
| [[02504891]]<ref name="vg only" group="n" />
|-
| "[[Skuna, the Leonine Rakan]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Skyfaring Castle of the Black Forest]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Slifer the Sky Dragon]]"
| This card cannot be used in a Duel.<ref name="giant card" group="n" />
| {{no}}
| 
|-
| "[[Slifer the Sky Dragon (original)|Slifer the Sky Dragon]]" (original)
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Stardust Divinity]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Suijin]]"
| 
| {{no}}
| [[98434877]]<ref name="vg only" group="n" />
|-
| "[[Super War-Lion]]"
| 
| {{yes|Yes<ref name"outside Japan" group="n">This card has always been printed with a password outside of Japan.</ref>}}
| [[33951077]]
|-
| "[[Super War-Lion (Normal)|Super War-Lion]]" (Normal)
| 
| {{no}}
| 
|-
| "[[Testament of the Arcane Lords]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[The Seal of Orichalcos (UDE promo)|The Seal of Orichalcos]]" (UDE promo)
| Not an Official Yu-Gi-Oh! TCG Card.
| {{no}}
| 
|-
| "[[The Twin Kings, Founders of the Empire]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[The Winged Dragon of Ra]]"
| This card cannot be used in a Duel.<ref name="giant card" group="n" />
| {{no}}
| 
|-
| "[[The Winged Dragon of Ra (original)|The Winged Dragon of Ra]]" (original)
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[The Winged Dragon of Ra - Immortal Phoenix]]"
| 
| {{no}}
| [[51404976]]<ref name="vg only" group="n" />
|-
| "[[The Winged Dragon of Ra - Sphere Mode]]"
| 
| {{no}}
| 
|-
| "[[Thousand Dragon]]"
| 
| {{no}}
| [[41462083]]<ref name="vg only" group="n" />
|-
| "[[Tomohiro the Mountain Warrior]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Tremendous Fire]]"
| 
| {{no}}
| [[46918794]]<ref name="vg only" group="n" />
|-
| "[[Tri-Horned Dragon]]"
| 
| {{yes}}
| [[39111158]]
|-
| "[[Turtle Oath]]"
| 
| {{no}}
| [[76806714]]<ref name="vg only" group="n" />
|-
| "[[Tyr, the Vanquishing Warlord]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Ulevo]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Wall Shadow]]"
| 
| {{no}}
| [[63162310]]<ref name="vg only" group="n" />
|-
| "[[War-Lion Ritual]]"
| 
| {{yes}}
| [[54539105]]
|-
| "[[Winning Formula]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Yasushi the Skull Knight]]"
| This card cannot be used in a Duel.
| {{no}}
| 
|-
| "[[Zera Ritual]]"
| 
| {{no}}
| [[81756897]]<ref name="vg only" group="n" />
|-
| "[[Zera the Mant]]"
| 
| {{no}}
| [[69123138]]<ref name="vg only" group="n" />
|-
| "[[Zera the Mant (Normal)|Zera the Mant]]" (Normal)
| 
| {{no}}
| 
|}

=== Notes ===
<references group="n" />

== Video games ==

=== Games with passwords ===
{{Incomplete|listing}}

{| class="wikitable sortable card-list"
|-
! scope="col" | Game
! scope="col" | Uses 8-digit passwords
! scope="col" | Uses other passwords
! scope="col" | Has non-card passwords
! scope="col" | Has unused passwords
|-
| ''[[Yu-Gi-Oh! Duel Monsters (video game)|Yu-Gi-Oh! Duel Monsters]]''
| {{No}}
| {{Yes}}
| {{No}}
| {{No}}
|-
| ''[[Yu-Gi-Oh! Duel Monsters II: Dark duel Stories]]''
| {{Yes}}
| {{No}}
| {{No}}
| {{No}}
|-
| ''[[Yu-Gi-Oh! Dark Duel Stories]]''
| {{Yes}}
| {{No}}
| {{Yes}}
| {{Yes}}
|-
| ''[[Yu-Gi-Oh! Forbidden Memories]]''
| {{Yes}}
| {{Yes}}
| {{No}}
| {{No}}
|-
| ''[[Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist]]''
| {{Yes}}
| {{No}}
| {{Yes}}
| {{No}}
|-
| ''[[Yu-Gi-Oh! Duel Monsters 5: Expert 1]]''
| {{Yes}}
| 
| 
| 
|-
| ''[[Yu-Gi-Oh! The Duelists of the Roses]]''
| {{No}}
| {{Yes}}
| 
| {{Yes}}
|-
| ''[[Yu-Gi-Oh! Duel Monsters 6: Expert 2]]''
| {{Yes}}
| 
| 
| {{Yes}}
|-
| ''[[Yu-Gi-Oh! The Sacred Cards]]''
| {{Yes}}
| 
| {{Yes}}
| 
|-
| ''[[Yu-Gi-Oh! The Eternal Duelist Soul]]''
| {{Yes}}
| 
| 
| 
|-
| ''[[Yu-Gi-Oh! Reshef of Destruction]]''
| {{Yes}}
| 
| {{Yes}}
| 
|-
| ''[[Yu-Gi-Oh! Worldwide Edition: Stairway to the Destined Duel]]''
| {{Yes}}
| 
| 
| 
|-
| ''[[Yu-Gi-Oh! 7 Trials to Glory: World Championship Tournament 2005]]''
| {{Yes}}
| 
| 
| 
|-
| ''[[Yu-Gi-Oh! Ultimate Masters: World Championship Tournament 2006]]''
| {{Yes}}
| {{Yes}}
| 
| 
|-
| ''[[Yu-Gi-Oh! GX Tag Force]]''
| {{Yes}}
| 
| 
| 
|-
| ''[[Yu-Gi-Oh! ZEXAL World Duel Carnival]]''
| 
| {{Yes}}
| {{Yes}}
| 
|-
| ''[[Yu-Gi-Oh! Duel Monsters Saikyo Card Battle]]''
| 
| {{Yes}}
| {{Yes}}
| 
|-
| ''[[Yu-Gi-Oh! RUSH DUEL: Dawn of the Battle Royale!!]]''
| 
| {{Yes}}
| {{Yes}}
| 
|}

=== Non-card passwords ===
These passwords are used in video games to perform some action other than unlocking cards.
{| class="wikitable sortable card-list"
|-
! scope="col" | Password
! scope="col" | Action
! scope="col" | Video game(s)
|-
| 65437205
| [[Solomon Muto (Dark Duel Stories)|Grandpa]] gives the player an extra card after each Duel
| ''[[Yu-Gi-Oh! Dark Duel Stories]]''
|-
| 70715281
| Change the Dark Stage opponent to [[Yami Yugi (Dark Duel Stories)|Yami Yugi]]
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 07119986
| Change the Dark Stage opponent to [[Yami Bakura (Dark Duel Stories)|Yami Bakura]]
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 43504084
| Change the Dark Stage opponent to [[Nitemare (Dark Duel Stories)|Nitemare]]
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 70592699
| Change the Dark Stage opponent to [[Shadi (Dark Duel Stories)|Shadi]]
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 06987398
| Change the Dark Stage opponent to [[Marik Ishtar (Dark Duel Stories)|Marik Ishtar]]
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 42382443
| View the credits
| ''Yu-Gi-Oh! Dark Duel Stories''
|-
| 17232574
| [[Solomon Muto (Duel Monsters 4)|Grandpa]] gives the player an extra card after each Duel
| ''[[Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist]]''
|-
| 71837829
| Change the Dark Stage opponent to [[Mai Valentine (Duel Monsters 4)|Mai Valentine]]
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 45442120
| Change the Dark Stage opponent to [[Bandit Keith (Duel Monsters 4)|Bandit Keith]]
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 18054115
| Change the Dark Stage opponent to [[Yami Yugi (Duel Monsters 4)|Yami Yugi]], except in ''Yugi Deck''
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 82659417
| Change the Dark Stage opponent to [[Yami Bakura (Duel Monsters 4)|Yami Bakura]], except in ''Kaiba Deck''
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 45565702
| Change the Dark Stage opponent to [[Marik Ishtar (Duel Monsters 4)|Marik Ishtar]], except in ''Joey Deck''
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 44220672
| View the credits
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 19170603
| Change the Secret Stage opponent to [[Yugi Gonbutori (Duel Monsters 4)|Yugi Gonbutori]]
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 83771069
| Change the Secret Stage opponent to [[Kaiser Umiuma (Duel Monsters 4)|Kaiser Umiuma]]
| ''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist''
|-
| 98025229
| Increase [[Deck Capacity]] by 100
| ''[[Yu-Gi-Oh! The Sacred Cards]]''
|-
| 62626514
| Gain 500 [[Domino (currency)|Domino]]
| ''Yu-Gi-Oh! The Sacred Cards''
|-
| 25232415
| On the title screen, [[Yugi Muto (The Sacred Cards and Reshef of Destruction)|Yugi Muto]] will shout "Yu-Gi-Oh! Duel Masters 7!" (only available on Japanese version)
| ''Yu-Gi-Oh! The Sacred Cards''
|-
| 51404976
| Unlocks the secret of Phoenix Mode. After entering this password, the player can talk to [[Marik Ishtar (The Sacred Cards and Reshef of Destruction)|Marik Ishtar]] to receive "[[The Winged Dragon of Ra (Phoenix Mode)|The Winged Dragon of Ra]]".
| ''[[Yu-Gi-Oh! Reshef of Destruction]]''
|-
| 25410867
| Change [[Reshef the Dark Being (Reshef of Destruction)|Reshef the Dark Being]] to {{wikia|goemon|Goemon Impact}}
| ''[[Yu-Gi-Oh! Reshef of Destruction]]''
|}

=== ''Duel Monsters'' ===
==== ''Duel Monsters'' ====
{{Main|''Yu-Gi-Oh! Duel Monsters'' (video game)#Passwords}}
These nine passwords are the only ones in ''[[Yu-Gi-Oh! Duel Monsters (video game)|Yu-Gi-Oh! Duel Monsters]]'', and use kana instead of numbers or letters. Each password is the name of a staff member who worked on the game, or who worked on the [[Yu-Gi-Oh! (manga)|manga series]] at [[Shueisha]] at the time. This was probably done because ''Duel Monsters'' was released before the first ''OCG'' set, ''[[Vol.1]]'', though it is not known why so few of the cards in the game have passwords, especially since the game credited at least nine individuals, but only six of them had passwords, and since the game includes 15 secret monsters, but only nine of them can be unlocked with a password.

{| class="wikitable sortable card-list"
|-
! scope="col" | #
! scope="col" | Card
! scope="col" | Password
! scope="col" | ''Rōmaji''
! scope="col" | Notes
|-
| 351
| [[Yaranzo (DM1)|Yaranzo]]
| ヘイシヨシヒサ
| ''heishiyoshihisa''
| Yoshihisa Heishi was a long-time editor for ''[[Weekly Shōnen Jump]]''.
|-
| 352
| [[Kanan the Swordmis (DM1)|Kanan the Swordmis]]
| ハシモトカナコ
| ''hashimotokanako''
| Kanako Hashimoto was the Director of Graphics for ''Duel Monsters''.
|-
| 353
| [[Takriminos (DM1)|Takriminos]]
| チダタクリ
| ''chidatakuri''
| Takuri Chida was a programmer for ''Duel Monsters''.
|-
| 354
| [[Stuffed Animal (DM1)|Stuffed Animal]]
| キタウエカズミ
| ''kitauekazumi''
| Kazumi Kitaue was the Executive Producer for ''Duel Monsters''.
|-
| 355
| [[Megasonic Eye (DM1)|Megasonic Eye]]
| シモムラサトシ
| ''shimomurasatoshi''
| [[Satoshi Shimomura]] was the Producer for ''Duel Monsters''.
|-
| 358
| [[Seiyaryu (DM1)|Seiyaryu]]
| トリシマカズヒコ
| ''torishimakazuhiko''
| Kazuhiko Torishima was the editor-in-chief for ''Weekly Shōnen Jump''.
|-
| 359
| [[Three-legged Zombi (DM1)|Three-legged Zombi]]
| タカハシトシマサ
| ''takahashitoshimasa''
| Toshimasa Takahashi was an editor for ''Weekly Shōnen Jump''.
|-
| 361
| [[Flying Penguin (DM1)|Flying Penguin]]
| ヤマダノブヒロ
| ''yamadanobuhiro''
| Nobuhiro Yamada was the Director of Game Design for ''Duel Monsters''.
|-
| 363
| [[Fairy's Gift (DM1)|Fairy's Gift]]
| タカハシカズキ
| ''takahashikazuki''
| [[Kazuki Takahashi]] is the creator of ''[[Yu-Gi-Oh!]]'', and was credited with Original Monster Design in ''Duel Monsters''.
|-
|}

==== ''II: Dark duel Stories'' ====

==== ''III: Tri-Holy God Advent'' (''Dark Duel Stories'') ====

===== Unusable ''Dark Duel Stories'' passwords =====
''[[Yu-Gi-Oh! Dark Duel Stories]]'' includes 102 unusable passwords which, when used, return the error message "Can't Record Password! Try a different password." There are also four passwords that appear in the game's data twice, for the cards "[[Wall of Illusion (DDS)|Wall of Illusion]]", [[Neo the Magic Swor]]", "[[Man-eating Treasur]]", and "[[Sorcerer of the Do]]". These four cards, and nine others with unusable passwords, were featured in the next ''[[Yu-Gi-Oh! Duel Monsters (video game series)|Duel Monsters]]'' video game, ''[[Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist]]''.

23 cards with unusable passwords were not released in the ''[[OCG]]''/''[[TCG]]'' until after the release of ''Dark Duel Stories'' (which was first released in Japan on July 13, 2000); five of the cards ("[[Mimicat]]", 2015; "[[Roulette Spider]]", 2015; "[[Dark Renewal]]", 2014; "[[Anti-Magic Arrows]]", 2015; and "[[Dragon Nails]]", 2022) were first released over a decade later, and one card ("[[Beckon to Darkness]]") has never been released in the ''OCG''/''TCG''. All cards which had been printed in the ''OCG'' before the release of ''Dark Duel Stories'' (all printed cards up to ''[[Magic Ruler (Japanese)|Magic Ruler]]'') were featured in the game, either as playable cards or as unusable passwords.

Eight of the unusable passwords have never been used for cards in the ''OCG''/''TCG'' or in other video games; these passwords have blank rows (other than the password itself) in the below table. The passwords are listed here in the same order in which they appear in the ''Dark Duel Stories'' ROM, though the table can be re-sorted by clicking on the desired column's header.

{| class="wikitable sortable card-list"
|-
! scope="col" | Password
! scope="col" | Card
! scope="col" | Set of first printing
! scope="col" | Date of first printing
! scope="col" | In ''DM4''?
|-
| 80987696
| [[Time Machine]]
| [[Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent Game Guide 2 promotional card|''Yu-Gi-Oh! Duel Monsters III: Tri-Holy God Advent Game Guide 2'' promotional card]]
| August 10, 2000
| {{No}}
|-
| 26376390
| [[Copycat]]
| ''[[Limited Edition 3: Joey Pack]]''
| April 1, 2001
| {{No}}
|-
| 52760909
| 
| 
| 
| {{No}}
|-
| 89255004
| 
| 
| 
| {{No}}
|-
| 15259703
| [[Toon World]]
| ''[[Pharaoh's Servant (Japanese)|Pharaoh's Servant]]''
| July 13, 2000
| {{No}}
|-
| 52648457
| [[Gorgon's Eye]]
| ''[[Soul of the Duelist]]''
| May 27, 2004
| {{No}}
|-
| 88032456
| [[Mimicat]]
| ''[[Collectors Pack: Duelist of Destiny Version]]''
| May 16, 2015
| {{No}}
|-
| 14437165
| 
| 
| 
| {{No}}
|-
| 14315573
| [[Negate Attack]]
| [[Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist: Jonouchi Deck promotional cards|''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist: Jonouchi Deck'' promotional cards]]
| December 7, 2000
| {{No}}
|-
| 86198326
| [[7 Completed]]
| ''[[Curse of Anubis (set)|Curse of Anubis]]''
| September 28, 2000
| {{Yes}}
|-
| 13192925
| 
| 
| 
| {{No}}
|-
| 49587034
| [[Lightforce Sword]]
| ''[[Curse of Anubis (set)|Curse of Anubis]]''
| September 28, 2000
| {{No}}
|-
| 76076738
| [[Dragon Nails]]
| ''[[Animation Chronicle 2022]]''
| June 11, 2022
| {{No}}
|-
| 43973174
| [[The Flute of Summoning Dragon]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{No}}
|-
| 52097679
| [[Shield & Sword]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 79571449
| [[Graceful Charity]]
| ''[[Booster 4]]''
| August 26, 1999
| {{No}}
|-
| 01248895
| [[Chain Destruction]]
| ''[[Curse of Anubis (set)|Curse of Anubis]]''
| September 28, 2000
| {{No}}
|-
| 48642904
| [[Mesmeric Control]]
| [[Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist: Yugi Deck promotional cards|''Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist: Yugi Deck'' promotional cards]]
| December 7, 2000
| {{No}}
|-
| 74137509
| [[Graceful Dice]]
| [[Yu-Gi-Oh! Duel Monsters 5: Expert 1 promotional cards|''Yu-Gi-Oh! Duel Monsters 5: Expert 1'' promotional cards]]
| July 5, 2001
| {{No}}
|-
| 00126218
| [[Skull Dice]]
| [[Yu-Gi-Oh! Duel Monsters 5: Expert 1 promotional cards|''Yu-Gi-Oh! Duel Monsters 5: Expert 1'' promotional cards]]
| July 5, 2001
| {{No}}
|-
| 37520316
| [[Mind Control]]
| [[Yu-Gi-Oh! Duel Monsters International 2 promotional cards|''Yu-Gi-Oh! Duel Monsters International 2'' promotional cards]]
| December 30, 2004
| {{No}}
|-
| 73915051
| [[Scapegoat]]
| ''[[Limited Edition 3: Joey Pack]]''
| April 1, 2001
| {{No}}
|-
| 00303660
| [[Amplifier]]
| ''[[The Sanctuary in the Sky (set)|The Sanctuary in the Sky]]''
| November 20, 2003
| {{No}}
|-
| 36708764
| [[Roulette Spider]]
| ''[[Collectors Pack: Duelist of Destiny Version]]''
| May 16, 2015
| {{No}}
|-
| 72892473
| [[Card Destruction]]
| ''[[EX-R Starter Box]]''
| November 23, 2000
| {{No}}
|-
| 09287078
| [[Dark Renewal]]
| ''[[Memories of the Duel King: Battle City Arc]]''
| July 5, 2014
| {{No}}
|-
| 35686187
| [[Tragedy]]
| ''[[Rise of Destiny]]''
| April 5, 2004
| {{No}}
|-
| 62070825
| 
| 
| 
| {{No}}
|-
| 08065530
| [[Beckon to Darkness]]
| 
| 
| {{Yes}}
|-
| 35563539
| [[Mystical Refpanel]]
| ''[[Limited Edition 3: Yugi Pack]]''
| April 1, 2001
| {{No}}
|-
| 61958234
| 
| 
| 
| {{No}}
|-
| 97342942
| [[Ectoplasmer]]
| ''[[Soul of the Duelist]]''
| May 27, 2004
| {{No}}
|-
| 34731047
| 
| 
| 
| {{No}}
|-
| 60736656
| 
| 
| 
| {{No}}
|-
| 97120394
| [[Anti-Magic Arrows]]
| ''[[Duelist Pack: Battle City]]''
| June 6, 2015
| {{No}}
|-
| 66788016
| [[Fissure]]
| [[Vol.1]]
| February 4, 1999
| {{No}}
|-
| 04206964
| [[Trap Hole]]
| [[Vol.1]]
| February 4, 1999
| {{No}}
|-
| 24094653
| [[Polymerization]]
| ''[[Starter Box: Theatrical Release]]''
| March 6, 1999
| {{No}}
|-
| 51482758
| [[Remove Trap]]
| ''[[Starter Box: Theatrical Release]]''
| March 6, 1999
| {{No}}
|-
| 83887306
| [[Two-Pronged Attack]]
| ''[[Starter Box: Theatrical Release]]''
| March 6, 1999
| {{No}}
|-
| 20871001
| [[Blue Medicine]]
| ''[[Booster 1]]''
| March 1, 1999
| {{No}}
|-
| 56260110
| [[Raimei]]
| ''[[Booster 1]]''
| March 1, 1999
| {{No}}
|-
| 83764718
| [[Monster Reborn]]
| ''[[Vol.2]]''
| March 27, 1999
| {{Yes}}
|-
| 19159413
| [[De-Spell]]
| ''[[Vol.2]]''
| March 27, 1999
| {{No}}
|-
| 82542267
| [[Gravedigger Ghoul]]
| ''[[Vol.3]]''
| May 27, 1999
| {{Yes}}
|-
| 18937875
| [[Burning Spear]]
| ''[[Booster 2]]''
| May 25, 1999
| {{No}}
|-
| 55321970
| [[Gust Fan]]
| ''[[Booster 2]]''
| May 25, 1999
| {{No}}
|-
| 17814387
| [[Reinforcements]]
| ''[[Booster 3]]''
| July 5, 1999
| {{No}}
|-
| 44209392
| [[Castle Walls]]
| ''[[Booster 3]]''
| July 5, 1999
| {{No}}
|-
| 80604091
| [[Ultimate Offering]]
| ''[[Booster 3]]''
| July 5, 1999
| {{No}}
|-
| 17092736
| [[Ancient Telescope]]
| ''[[Booster 3]]''
| July 5, 1999
| {{No}}
|-
| 43487744
| [[White Hole]]
| ''[[Booster 4]]''
| August 26, 1999
| {{No}}
|-
| 16970158
| [[Call of the Grave]]
| ''[[Booster 4]]''
| August 26, 1999
| {{No}}
|-
| 79759861
| [[Tribute to The Doomed]]
| ''[[Vol.5]]''
| September 23, 1999
| {{No}}
|-
| 05758500
| [[Soul Release]]
| ''[[Vol.5]]''
| September 23, 1999
| {{No}}
|-
| 41142615
| [[The Cheerful Coffin]]
| ''[[Vol.5]]''
| September 23, 1999
| {{No}}
|-
| 78637313
| [[Call of Darkness]]
| ''[[Vol.5]]''
| September 23, 1999
| {{No}}
|-
| 41420027
| [[Solemn Judgment]]
| ''[[Vol.6]]''
| November 18, 1999
| {{No}}
|-
| 77414722
| [[Magic Jammer]]
| ''[[Vol.6]]''
| November 18, 1999
| {{No}}
|-
| 03819470
| [[Seven Tools of the Bandit]]
| ''[[Vol.6]]''
| November 18, 1999
| {{No}}
|-
| 98069388
| [[Horn of Heaven]]
| ''[[Vol.6]]''
| November 18, 1999
| {{No}}
|-
| 24068492
| [[Just Desserts]]
| ''[[Booster 5]]''
| October 17, 1999
| {{No}}
|-
| 51452091
| [[Royal Decree]]
| ''[[Booster 5]]''
| October 17, 1999
| {{No}}
|-
| 27847700
| [[Polymerization (alternate password)]]
| ''[[Vol.6]]''
| November 18, 1999
| {{No}}
|-
| 53119267
| [[Magical Thorn]]
| ''[[Booster 6]]''
| December 1, 1999
| {{No}}
|-
| 26902560
| [[Fusion Sage]]
| ''[[Booster 6]]''
| December 1, 1999
| {{No}}
|-
| 98495314
| [[Sword of Deep-Seated]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 25880422
| [[Block Attack]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 51275027
| [[The Unhappy Maiden]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 88279736
| [[Robbin' Goblin]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 24668830
| [[Germ Infection]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 50152549
| [[Paralyzing Potion]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 87557188
| [[The Stern Mystic]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes}}
|-
| 13945283
| [[Wall of Illusion]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes|In ''DM3''}}
|-
| 50930991
| [[Neo the Magic Swordsman]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes|In ''DM3''}}
|-
| 86325596
| [[Baron of the Fiend Sword]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes}}
|-
| 13723605
| [[Man-Eating Treasure Chest]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes|In ''DM3''}}
|-
| 49218300
| [[Sorcerer of the Doomed]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{Yes|In ''DM3''}}
|-
| 85602018
| [[Last Will]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{No}}
|-
| 12607053
| [[Waboku]]
| ''[[EX Starter Box]]''
| December 16, 1999
| {{No}}
|-
| 44095762
| [[Mirror Force]]
| ''[[Vol.7]]''
| January 27, 2000
| {{No}}
|-
| 20436034
| [[Ring of Magnetism]]
| ''[[Booster 7]]''
| March 1, 2000
| {{No}}
|-
| 56830749
| [[Share the Pain]]
| ''[[Booster 7]]''
| March 1, 2000
| {{No}}
|-
| 83225447
| [[Stim-Pack]]
| ''[[Booster 7]]''
| March 1, 2000
| {{No}}
|-
| 19613556
| [[Heavy Storm]]
| ''[[Booster 7]]''
| March 1, 2000
| {{Yes}}
|-
| 55608151
| [[Gryphon Wing]]
| ''[[Booster 7]]''
| March 1, 2000
| {{No}}
|-
| 16762927
| [[Gravekeeper's Servant]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 12470447
| [[Curse of Fiend]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 70368879
| [[Upstart Goblin]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 82003859
| [[Toll]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 18591904
| [[Final Destiny]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{Yes}}
|-
| 45986603
| [[Snatch Steal]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 81380218
| [[Chorus of Sanctuary]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 17375316
| [[Confiscation]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 44763025
| [[Delinquent Duo]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 80168720
| [[Darkness Approaches]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{Yes}}
|-
| 17653779
| [[Fairy's Hand Mirror]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 43641473
| [[Tailor of the Fickle]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 70046172
| [[Rush Recklessly]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 16430187
| [[The Reliable Guardian]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 42829885
| [[The Forceful Sentry]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 79323590
| [[Chain Energy]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 05318639
| [[Mystical Space Typhoon]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 42703248
| [[Giant Trunade]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 74191942
| [[Painful Choice]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
| 00596051
| [[Snake Fang]]
| ''[[Magic Ruler (Japanese)|Magic Ruler]]''
| April 20, 2000
| {{No}}
|-
|}

==== ''4: Battle of Great Duelist'' ====

==== ''5: Expert 1'' ====

==== ''6: Expert 2'' ====

===== Unusable ''Duel Monsters 6'' passwords =====
''[[Yu-Gi-Oh! Duel Monsters 6: Expert 2]]'' has 1115 cards, but due to a bug in the password checking routine, only the first 1086 passwords are usable. As a result, 17 passwords cannot be used, even though they are present in the game's ROM. (There are actually 29 unusable password slots, but 12 of them correspond to cards without a usable password anyways; that is, their password in the ROM is set to <code>FFFFFFFF</code>.)

The "I#" column in the following table stands for "internal number".

{| class="wikitable sortable card-list"
|-
! scope="col" | #
! scope="col" | I#
! scope="col" | Card
! scope="col" | Password
|-
| 1087
| 0338
| "[[Red Medicine (DM6)|Red Medicine]]"
| 38199696
|-
| 1088
| 1430
| "[[Lady Panther (DM6)|Lady Panther]]"
| 38480590
|-
| 1089
| 0644
| "[[Royal Guard (DM6)|Royal Guard]]"
| 39239728
|-
| 1091
| 0740
| "[[Lord of D. (DM6)|Lord of D.]]"
| 17985575
|-
| 1093
| 0348
| "[[Spellbinding Circle (DM6)|Spellbinding Circle]]"
| 18807108
|-
| 1094
| 1231
| "[[Rocket Warrior (DM6)|Rocket Warrior]]"
| 30860696
|-
| 1095
| 0599
| "[[Key Mace 2 (DM6)|Key Mace #2]]"
| 20541432
|-
| 1096
| 1403
| "[[Worm Drake (DM6)|Worm Drake]]"
| 73216412
|-
| 1097
| 1319
| "[[Dimensionhole (DM6)|Dimensionhole]]"
| 22959079
|-
| 1098
| 0023
| "[[Skull Servant (DM6)|Skull Servant]]"
| 32274490
|-
| 1099
| 0551
| "[[Winged Dragon, Guardian of the Fortress 2 (DM6)|Winged Dragon, Guardian of the Fortress #2]]"
| 57405307
|-
| 1100
| 0760
| "[[Alligator's Sword (DM6)|Alligator's Sword]]"
| 64428736
|-
| 1101
| 0079
| "[[Uraby (DM6)|Uraby]]"
| 01784619
|-
| 1102
| 1004
| "[[Remove Trap (DM6)|Remove Trap]]"
| 51482758
|-
| 1103
| 1055
| "[[Waboku (DM6)|Waboku]]"
| 12607053
|-
| 1104
| 0509
| "[[Laughing Flower (DM6)|Laughing Flower]]"
| 42591472
|-
| 1105
| 0295
| "[[One-Eyed Shield Dragon (DM6)|One-Eyed Shield Dragon]]"
| 33064647
|-
|}

==== ''7: The Duelcity Legend'' (''The Sacred Cards'') ====

==== ''8: Reshef of Destruction'' ====

=== ''Duel Monsters'' remakes ===
==== ''Eternal Duelist Soul'' ====

==== ''Stairway to the Destined Duel'' ====

=== ''True Duel Monsters'' ===
==== ''Forbidden Memories'' ====
Entering a card's password allows it to be purchased for a certain number of [[Star Chip]]s; the same card can only be purchased once.

The Japanese version of the game allowed certain cards to be acquired via [[Yu-Gi-Oh! Forbidden Memories#Lottery|lottery]], in which a special password was entered into the player's [[wikipedia:PocketStation|PocketStation]]. The PocketStation's internal ID would be used to generate a five-digit number, and if the ending digits of this generated number were correct for the entered password, a card would be awarded. This meant that most cards would not be awarded on a given device; in the extreme cases (requiring all five digits of the generated number to be correct), only one in 100,000 devices would "win" the lottery.

While they were not used for any cards in ''Forbidden Memories'', passwords for certain cards would be shown in its credits; these passwords were instead for ''[[Yu-Gi-Oh! The Duelists of the Roses]]'', the sequel to ''Forbidden Memories''. The potentially shown passwords are for "[[Exodia the Forbidden One (DOR)|Exodia the Forbidden One]]", "[[Goblin Fan (DOR)|Goblin Fan]]", "[[Meteor Dragon (DOR)|Meteor Dragon]]", "[[Mirror Wall (DOR)|Mirror Wall]]", and "[[Slate Warrior (DOR)|Slate Warrior]]".

==== ''Duelists of the Roses'' ====
''[[Yu-Gi-Oh! The Duelists of the Roses]]'' used eight-character alphanumeric passwords that have never been reused elsewhere. All 854 cards in the game have a password, but 120 of them are unusable, listed below. Usable passwords are listed on the [[List of Yu-Gi-Oh! The Duelists of the Roses cards|list of cards]].

===== Unusable ''The Duelists of the Roses'' passwords =====
All 854 cards included in ''[[Yu-Gi-Oh! The Duelists of the Roses]]'' have an 8-character alphanumeric password in the ROM. 120 of these passwords are marked as unusable, listed in the following table.

{| class="wikitable sortable card-list"
|-
! scope="col" | #
! scope="col" | Card
! scope="col" | Password
|-
| 002
| "[[Blue-Eyes Ultimate Dragon (DOR)|Blue-Eyes Ultimate Dragon]]"
| [[Y34KAPWP]]
|-
| 009
| "[[B. Skull Dragon (DOR)|B. Skull Dragon]]"
| [[8MEZ6KUB]]
|-
| 010
| "[[Tri-Horned Dragon (DOR)|Tri-Horned Dragon]]"
| [[NKAMN7GT]]
|-
| 011
| "[[Serpent Night Dragon (DOR)|Serpent Night Dragon]]"
| [[0VW12RYD]]
|-
| 012
| "[[Mikazukinoyaiba (DOR)|Mikazukinoyaiba]]"
| [[CPWX4PSR]]
|-
| 013
| "[[Yamadron (DOR)|Yamadron]]"
| [[0FY36TEM]]
|-
| 014
| "[[Meteor B. Dragon (DOR)|Meteor B. Dragon]]"
| [[C9EFJB6P]]
|-
| 023
| "[[Gaia the Dragon Champion (DOR)|Gaia the Dragon Champion]]"
| [[JX8XL7UZ]]
|-
| 024
| "[[Thousand Dragon (DOR)|Thousand Dragon]]"
| [[0DSBLM2K]]
|-
| 031
| "[[Sky Dragon (DOR)|Sky Dragon]]"
| [[2P25G3GV]]
|-
| 051
| "[[The Stern Mystic (DOR)|The Stern Mystic]]"
| [[SB6P0BYF]]
|-
| 054
| "[[Right Leg of the Forbidden One (DOR)|Right Leg of the Forbidden One]]"
| [[07W7S5LX]]
|-
| 055
| "[[Left Leg of the Forbidden One (DOR)|Left Leg of the Forbidden One]]"
| [[CTYBG16D]]
|-
| 056
| "[[Right Arm of the Forbidden One (DOR)|Right Arm of the Forbidden One]]"
| [[4XCM010Z]]
|-
| 075
| "[[Skull Knight (DOR)|Skull Knight]]"
| [[CFW9G3LK]]
|-
| 076
| "[[Cosmo Queen (DOR)|Cosmo Queen]]"
| [[SXJXCR2R]]
|-
| 077
| "[[Mask of Shine & Dark (DOR)|Mask of Shine & Dark]]"
| [[0F45EHNP]]
|-
| 078
| "[[Magician of Black Chaos (DOR)|Magician of Black Chaos]]"
| [[ETJBATCH]]
|-
| 079
| "[[Dark Elf (DOR)|Dark Elf]]"
| [[8F2B29G5]]
|-
| 083
| "[[Lord of D. (DOR)|Lord of D.]]"
| [[GXSVSXWM]]
|-
| 087
| "[[Dark Magician Girl (DOR)|Dark Magician Girl]]"
| [[UBE9ARYZ]]
|-
| 128
| "[[Dokurorider (DOR)|Dokurorider]]"
| [[AZG1S92P]]
|-
| 135
| "[[Skull Guardian (DOR)|Skull Guardian]]"
| [[S5WZ098D]]
|-
| 143
| "[[Black Luster Soldier (DOR)|Black Luster Soldier]]"
| [[2FYK69EK]]
|-
| 144
| "[[Wall Shadow (DOR)|Wall Shadow]]"
| [[0MNT8R2M]]
|-
| 145
| "[[Gate Guardian (DOR)|Gate Guardian]]"
| [[0TETEBWV]]
|-
| 147
| "[[Hungry Burger (DOR)|Hungry Burger]]"
| [[GBJDSM2X]]
|-
| 148
| "[[Garma Sword (DOR)|Garma Sword]]"
| [[4T0R8MY3]]
|-
| 175
| "[[Eyearmor (DOR)|Eyearmor]]"
| [[UFYKYZYT]]
|-
| 188
| "[[Stuffed Animal (DOR)|Stuffed Animal]]"
| [[QMEFNVA9]]
|-
| 189
| "[[Millennium Shield (DOR)|Millennium Shield]]"
| [[WKY7GF6T]]
|-
| 195
| "[[Performance of Sword (DOR)|Performance of Sword]]"
| [[Y9EP8KED]]
|-
| 215
| "[[Rabid Horseman (DOR)|Rabid Horseman]]"
| [[21CZGD2F]]
|-
| 220
| "[[Sengenjin (DOR)|Sengenjin]]"
| [[CRYD8K6M]]
|-
| 221
| "[[Nekogal 2 (DOR)|Nekogal #2]]"
| [[AX8161ER]]
|-
| 226
| "[[Firewing Pegasus (DOR)|Firewing Pegasus]]"
| [[U3CTYH0X]]
|-
| 248
| "[[Super War-Lion (DOR)|Super War-Lion]]"
| [[43J3Y70V]]
|-
| 259
| "[[Mon Larvas (DOR)|Mon Larvas]]"
| [[4T2HUKAD]]
|-
| 267
| "[[Chimera the Flying Mythical Beast (DOR)|Chimera the Flying Mythical Beast]]"
| [[4569CZ4R]]
|-
| 268
| "[[Fiend Reflection 2 (DOR)|Fiend Reflection #2]]"
| [[JKAMN5QH]]
|-
| 269
| "[[Crimson Sunbird (DOR)|Crimson Sunbird]]"
| [[6PSZ092X]]
|-
| 273
| "[[Harpie Lady Sisters (DOR)|Harpie Lady Sisters]]"
| [[0PQDEZ8P]]
|-
| 280
| "[[Punished Eagle (DOR)|Punished Eagle]]"
| [[QRQX2KC1]]
|-
| 294
| "[[Summoned Skull (DOR)|Summoned Skull]]"
| [[UHQZGD0Z]]
|-
| 303
| "[[Metal Guardian (DOR)|Metal Guardian]]"
| [[JPYRGPL3]]
|-
| 337
| "[[Zera The Mant (DOR)|Zera The Mant]]"
| [[GBWF0TSR]]
|-
| 338
| "[[Fiend's Mirror (DOR)|Fiend's Mirror]]"
| [[2RQV6H6P]]
|-
| 343
| "[[Ushi Oni (DOR)|Ushi Oni]]"
| [[61U78T0F]]
|-
| 345
| "[[Soul Hunter (DOR)|Soul Hunter]]"
| [[J9QHS1AH]]
|-
| 352
| "[[Chakra (DOR)|Chakra]]"
| [[L32BG7N5]]
|-
| 353
| "[[Psycho-Puppet (DOR)|Psycho-Puppet]]"
| [[AK8KJ5AZ]]
|-
| 362
| "[[Toon Summoned Skull (DOR)|Toon Summoned Skull]]"
| [[E52BJXEP]]
|-
| 382
| "[[Goddess of Whim (DOR)|Goddess of Whim]]"
| [[SHUBNHCF]]
|-
| 385
| "[[Dark Witch (DOR)|Dark Witch]]"
| [[2ZG7E9L5]]
|-
| 390
| "[[Hourglass of Courage (DOR)|Hourglass of Courage]]"
| [[UBJTJ3LK]]
|-
| 401
| "[[Larvae Moth (DOR)|Larvae Moth]]"
| [[E9UX2TYX]]
|-
| 402
| "[[Great Moth (DOR)|Great Moth]]"
| [[29UH6KGM]]
|-
| 403
| "[[Perfectly Ultimate Great Moth (DOR)|Perfectly Ultimate Great Moth]]"
| [[WB2X47AV]]
|-
| 408
| "[[Jirai Gumo (DOR)|Jirai Gumo]]"
| [[4XA7Q769]]
|-
| 417
| "[[Man-Eater Bug (DOR)|Man-Eater Bug]]"
| [[6D0HGTL1]]
|-
| 422
| "[[Javelin Beetle (DOR)|Javelin Beetle]]"
| [[CV258TGH]]
|-
| 427
| "[[Larva of Moth]]"
| [[L5G7CPET]]
|-
| 428
| "[[Pupa of Moth]]"
| [[GMJ3GKGV]]
|-
| 429
| "[[Arsenal Bug (DOR)|Arsenal Bug]]"
| [[0RUVLMC7]]
|-
| 445
| "[[Bracchio-raidus (DOR)|Bracchio-raidus]]"
| [[41WFAV61]]
|-
| 472
| "[[Fortress Whale (DOR)|Fortress Whale]]"
| [[WFNZGT0B]]
|-
| 479
| "[[Sea King Dragon (DOR)|Sea King Dragon]]"
| [[A3J7EDLK]]
|-
| 485
| "[[Megasonic Eye (DOR)|Megasonic Eye]]"
| [[W3YT0TQV]]
|-
| 488
| "[[Metalzoa (DOR)|Metalzoa]]"
| [[NT65UK6M]]
|-
| 501
| "[[Red-Eyes Black Metal Dragon (DOR)|Red-Eyes Black Metal Dragon]]"
| [[JBLDSTEH]]
|-
| 505
| "[[Slot Machine (DOR)|Slot Machine]]"
| [[WTJPQ98F]]
|-
| 509
| "[[Blast Juggler (DOR)|Blast Juggler]]"
| [[J9WMSMQX]]
|-
| 514
| "[[Machine King (DOR)|Machine King]]"
| [[SBGVUDJX]]
|-
| 528
| "[[Kinetic Soldier (DOR)|Kinetic Soldier]]"
| [[GDL58TN5]]
|-
| 529
| "[[Metal Dragon (DOR)|Metal Dragon]]"
| [[G3SVC1JV]]
|-
| 538
| "[[Twin-Headed Thunder Dragon (DOR)|Twin-Headed Thunder Dragon]]"
| [[LMCR0VQR]]
|-
| 596
| "[[Crab Turtle (DOR)|Crab Turtle]]"
| [[A9LDEX6P]]
|-
| 620
| "[[Flame Cerebrus (DOR)|Flame Cerebrus]]"
| [[67QMY3Q5]]
|-
| 632
| "[[Stone D. (DOR)|Stone D.]]"
| [[CFLDGDED]]
|-
| 641
| "[[Mystical Sand (DOR)|Mystical Sand]]"
| [[JB25214D]]
|-
| 668
| "[[Woodland Sprite (DOR)|Woodland Sprite]]"
| [[UZU3LH81]]
|-
| 671
| "[[Summoned Lord Exodia]]"
| [[AM4ZNXED]]
|-
| 672
| "[[Jowls of Dark Demise (DOR)|Jowls of Dark Demise]]"
| [[LXCDGRE1]]
|-
| 673
| "[[Souleater (DOR)|Souleater]]"
| [[C3W12DER]]
|-
| 675
| "[[Shapesnatch (DOR)|Shapesnatch]]"
| [[W9JHCD8R]]
|-
| 676
| "[[Carat Idol]]"
| [[N121ET6V]]
|-
| 677
| "[[Electromagnetic Bagworm (DOR)|Electromagnetic Bagworm]]"
| [[QTYPC1A7]]
|-
| 678
| "[[Timeater (DOR)|Timeater]]"
| [[2RJDCMA7]]
|-
| 679
| "[[Mucus Yolk (DOR)|Mucus Yolk]]"
| [[CXNX4VLZ]]
|-
| 680
| "[[Servant of Catabolism (DOR)|Servant of Catabolism]]"
| [[J5GMS1YF]]
|-
| 681
| "[[Rigras Leever (DOR)|Rigras Leever]]"
| [[E7GZWT23]]
|-
| 682
| "[[Moisture Creature (DOR)|Moisture Creature]]"
| [[G1SK8PET]]
|-
| 697
| "[[Labyrinth Wall (DOR)|Labyrinth Wall]]"
| [[2VE90FLF]]
|-
| 700
| "[[Raigeki (DOR)|Raigeki]]"
| [[LBC74BSZ]]
|-
| 707
| "[[Dian Keto the Cure Master (DOR)|Dian Keto the Cure Master]]"
| [[YHEBS5A9]]
|-
| 719
| "[[The Inexperienced Spy (DOR)|The Inexperienced Spy]]"
| [[2VJHG7N1]]
|-
| 733
| "[[Brain Control (DOR)|Brain Control]]"
| [[SDEVQDE3]]
|-
| 751
| "[[Creature Swap (DOR)|Creature Swap]]"
| [[YMYVEVW5]]
|-
| 789
| "[[Riryoku (DOR)|Riryoku]]"
| [[0KAB65EK]]
|-
| 812
| "[[Widespread Ruin (DOR)|Widespread Ruin]]"
| [[6D4Z45UX]]
|-
| 821
| "[[Anti Raigeki (DOR)|Anti Raigeki]]"
| [[0VWMNDCD]]
|-
| 827
| "[[Mirror Force (DOR)|Mirror Force]]"
| [[23GPEPAP]]
|-
| 830
| "[[Curse of Millennium Shield (DOR)|Curse of Millennium Shield]]"
| [[A7S5CTQ1]]
|-
| 832
| "[[Gate Guardian Ritual (DOR)|Gate Guardian Ritual]]"
| [[AKQVADQX]]
|-
| 833
| "[[Black Luster Ritual (DOR)|Black Luster Ritual]]"
| [[SH8KG9UT]]
|-
| 834
| "[[Zera Ritual (DOR)|Zera Ritual]]"
| [[L149GB8M]]
|-
| 835
| "[[War-Lion Ritual (DOR)|War-Lion Ritual]]"
| [[6FADU12T]]
|-
| 837
| "[[Ultimate Dragon (DOR)|Ultimate Dragon]]"
| [[A1G52VS3]]
|-
| 840
| "[[Revival of Sennen Genjin (DOR)|Revival of Sennen Genjin]]"
| [[CD4XU74M]]
|-
| 841
| "[[Novox's Prayer (DOR)|Novox's Prayer]]"
| [[JP4ZYHJ7]]
|-
| 842
| "[[Curse of Tri-Horned Dragon (DOR)|Curse of Tri-Horned Dragon]]"
| [[J7YFWT8V]]
|-
| 843
| "[[Revived Serpent Night Dragon (DOR)|Revived Serpent Night Dragon]]"
| [[CRL16501]]
|-
| 844
| "[[Turtle Oath (DOR)|Turtle Oath]]"
| [[W7WFNZAB]]
|-
| 846
| "[[Resurrection of Chakra (DOR)|Resurrection of Chakra]]"
| [[0H8DYFQB]]
|-
| 848
| "[[Javelin Beetle Pact (DOR)|Javelin Beetle Pact]]"
| [[4DJK2X8D]]
|-
| 849
| "[[Garma Sword Oath (DOR)|Garma Sword Oath]]"
| [[WHYZQPSR]]
|-
| 850
| "[[Cosmo Queen's Prayer (DOR)|Cosmo Queen's Prayer]]"
| [[GXN767YK]]
|-
| 851
| "[[Revival of Dokurorider (DOR)|Revival of Dokurorider]]"
| [[UZNB0Z0X]]
|-
| 852
| "[[Fortress Whale's Oath (DOR)|Fortress Whale's Oath]]"
| [[JXS70P4F]]
|-
| 853
| "[[Dark Magic Ritual (DOR)|Dark Magic Ritual]]"
| [[AHW7J7NM]]
|-
|}

=== ''Tag Force'' ===
==== ''GX Tag Force'', ''Tag Force 2'' and ''Tag Force 3'' ====
In the [[SAL lab|lab]], all cards (except Game Original cards) can be rented at the rental counter by entering their passwords. There is no cost for entering a password. However, each the time player Duels, their [[Duelist Points|DP]] earnings from the Duel will be reduced even when not using any of their rented cards in said Duels. Up to three cards can be rented at a time.

==== ''ARC-V Tag Force Special'' ====
Six cards can only be obtained by entering [[Yu-Gi-Oh! ARC-V Tag Force Special#Cards|passwords]] which were included in issues of ''[[Weekly Shōnen Jump]]'' and ''[[V Jump]]'' from 2015, at the 2015 ''[[Jump Festa]]'', and in the ''Tag Force Special Strategy Guide''.

=== ''World Championship'' ===
==== ''Tournament 2004'' ====

==== ''7 Trials to Glory: Tournament 2005'' ====

==== ''Ultimate Masters: Tournament 2006'' ====
Each password used costs a certain amount of [[Duelist Points|DP]], with the price depending on the card.

''Ultimate Masters: World Championship Tournament 2006'' has a second unrelated password system used for unlocking additional banlists. Because Konami could not effectively predict future banlists, this system allows the banlist's complete contents and name to be encoded.

==== ''2007'' ====

==== ''2008'' ====

==== ''5D's 2009: Stardust Accelerator'' ====

==== ''5D's 2010: Reverse of Arcadia'' ====

==== ''5D's 2011: Over the Nexus'' ====

=== Other video games ===
==== ''ZEXAL World Duel Carnival'' ====
''[[Yu-Gi-Oh! ZEXAL World Duel Carnival]]'' features a [[Present Code]] system for unlocking otherwise-unavailable items and Deck Recipes. Each code consists of a name or word/phrase written in kana, followed by a string of digits. The codes were revealed on the game's official website and in some promotional materials.

==== ''Duel Monsters Saikyo Card Battle'' ====
''[[Yu-Gi-Oh! Duel Monsters Saikyo Card Battle]]'' includes [[Yu-Gi-Oh! Duel Monsters Saikyo Card Battle#Internet content|Campaign Codes]], strings of kana which could be entered to unlock Decks. This content is no longer available.

Three codes are known:
* "Half Starter Deck 2016" could be unlocked using the code <code>せかくと　もにしい　おけよさ　とくんを</code> (''Se kaku to mo ni shī oke yo sa to-kun o'')
* "Half Structure Deck Yugi Muto" could be unlocked using the code <code>きわくむ　すをせて　のなゆき　つやこさ</code> (''Kiwa kumu su o sete no na yuki Tsuyako-sa'')
* "Half Structure Deck Seto Kaiba" could be unlocked using the code <code>ろなきへ　をなむふ　せすほら　にろませ</code> (''Ro naki he ona mufu se su hora niromase'')

==== ''RUSH DUEL: Dawn of the Battle Royale!!'' ====
''[[Yu-Gi-Oh! RUSH DUEL: Dawn of the Battle Royale!!]]'' includes [[Yu-Gi-Oh! RUSH DUEL: Dawn of the Battle Royale!!#Promotional Codes|promotional codes]], each a ten-character alphanumeric string, which unlock cards, card sleeves, Deck boxes, and game mats. The Japanese and international releases of the game feature different sets of codes from each other.

==== ''RUSH DUEL: Saikyo Battle Royale!! Let's Go! Go Rush!!'' ====
''[[Yu-Gi-Oh! RUSH DUEL: Saikyo Battle Royale!! Let's Go! Go Rush!!]]'' includes [[Yu-Gi-Oh! RUSH DUEL: Saikyo Battle Royale!! Let's Go! Go Rush!!#Promotional Codes|promotional codes]]; like in ''RUSH DUEL: Dawn of the Battle Royale!!'', each is a ten-character alphanumeric string. The codes announced as of December 14, 2022 only grant GP.

{{Card layout}}

[[Category:Card layout]]