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| Duel Simon | 100% | |
| Defeat all tier five duelists fifteen times each. Duel either Tea, Tristan, or Truesdale 3 times in a row and on the fourth time, Simon will be unlocked. | ||
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| Duel Computer | 100% | |
| Defeat all tier five duelists fifteen times each. Duel Seto Kaiba 3 times in a row, and on the fourth time the duel computer will be unlocked. | ||
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| Permanently Unlock Duelists | 100% | |
| Some duelists have extra requirements to unlock. You must constantly meet these requirements or they will vanish from the selection screen. If you defeat a duelist with special requirements 10 times, they will be permanently selectable, regardless of their past requirements. For example, if you defeat Joey 10 times, you can then duel him even if you have a Jinzo card in your deck. *** Losses and ties do not count against your total wins. | ||
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| Duel Seto Kaiba | 100% | |
| Defeat Ishizu Ishtar 10 times. | ||
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| Duel Yami Marik | 100% | |
| Defeat all tier five duelists fifteen times each. Duel Marik 3 times in a row, and on the fourth time Yami Marik will be unlocked. | ||
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| Duel Yami Yugi | 100% | |
| Defeat all tier five duelists fifteen times each. Duel Yugi 3 times in a row, and on the fourth time Yami Yugi will be unlocked. | ||
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| Duel Ghouls (your choice) | 100% | |
| Defeat Marik Ishtar once. | ||
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| Duel Yami Bakura | 100% | |
| Defeat all tier five duelists fifteen times each. Duel Bakura 3 times in a row, and on the fourth time, Yami Bakura will be unlocked. | ||
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| Limitation Option | 100% | |
| Win the game 100% (collect all cards). You can now choose to have restricted cards to be no longer restricted. Blue Millennium Booster: Defeat Rare Hunter 10 times. Blue/Green Millennium Booster: Defeat Strings 10 times. Dark Ruler Hades Booster: Defeat Bandit Keith 10 times. Gold Millennium Booster: Defeat Odion 10 times. Guardian Sphinx Booster: Defeat Pegasus 10 times. Jinzo Booster: Defeat Weevil 10 times. Purple Millennium Booster: Defeat Umbra and Lumis 10 times. Red Millennium Booster: Defeat Arkana 10 times. Relinquished Booster: Defeat Rex Raptor 10 times. The Masked Beast Booster: Defeat Maku Tsunami 10 times. Thousand-Eyes Restrict Booster: Defeat Bonz 10 times. Toon Summoned Skull Booster: Defeat Espa Roba 10 times. Yamata Dragon Booster: Defeat Joey Wheeler 10 times. Zombrya the Dark Booster: Defeat Mai Valentine 10 times. | ||
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| Duel Ishizu Ishtar | 100% | |
| Defeat all five Ghouls 10 times each. You must use a deck without any magic or trap cards to duel Ishizu. | ||
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| Duel Joey Wheeler | 100% | |
| Defeat all tier 2 duelists five times each and have a Jinzo card in your trunk, and none in your deck. | ||
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| Duel Maximillion Pegasus | 100% | |
| Defeat all tier 2 duelists five times each. Have at least one Toon World, Blue-Eyes Toon Dragon, and Toon Summoned Skull cards in your trunk. | ||
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| Duel Marik Ishtar | 100% | |
| Defeat each of the five Ghouls once. | ||
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| Duel Rex Raptor | 100% | |
| Defeat all tier one duelists 3 times each and open at least five Blue Eyes White Dragon booster packs. | ||
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| Duel Bonz | 100% | |
| Defeat all tier one duelists 3 times each and open at least five Barrel Dragon booster packs. | ||
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| Duel Bandit Keith | 100% | |
| Defeat all tier 2 duelists five times each and have a Barrel Dragon card in your trunk, and none in your deck. | ||
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| Duel Ghouls (randomly) | 100% | |
| Defeat Bandit Keith, Joey Wheeler, Mai Valentine, and Pegasus 7 times each. | ||
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| Duel Espa Roba | 100% | |
| Defeat all tier one duelists 3 times each and open at least five Red Eyes Black Dragon booster packs. | ||
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| Duel Weevil Underwood | 100% | |
| Defeat all tier one duelists 3 times each and open at least five Black Skull Dragon booster packs. | ||
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| Duel Mako Tsunami | 100% | |
| Defeat all tier one duelists 3 times each and open at least five Black Luster Soldier booster packs. | ||
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| View Credits Again | 100% | |
| View the credits at least once. To view them again, press Up, Up, Down, Down, Left, Right, Left, Right, B, A at the selection menu. | ||
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| Duel Faster | 98% | |
| Hold L when you are at the duelist selection screen. Continue holding L until the duel starts and it will go much faster. | ||
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| Duel Mai Valentine | 98% | |
| Defeat all tier 2 duelists five times each and have a Harpie Lady card in your trunk, but no Harpie's Feather Duster card in your deck. | ||
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| When duleing yugis grand dad | 50% | |
| When duleing yugis grand dad be quick or he will bring out exzoita.and watch out for yugis grand dads fase down cards. there are usually trap cards that will kill 1 monster. | ||
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The ultimate card battle begins now in Yu-Gi-Oh! World Championship Tournament 2004. With over 1000 game cards, the ability to create three different dueling decks, and dozens of popular characters from the top-rated Yu-Gi-Oh! TV series, the excitement and exhilaration of the Yu-Gi-Oh! TRADING CARD GAME is captured in full force. Victory is all that matters as players practice and tune their decks for the ultimate 
