Yu-Gi-Oh! Duel Monsters Expert 3 Cheats and Tips [GBA]

Unlockable - Unlocking more duealists

Rex Raptor (lvl2 duelist)Beaten all lvl 1 duelists for 3 times and have opened 5 packs of Blue eyes white dragon booster.
Espa Roba (lvl2 duelist)Beaten all lvl 1 duelists for 3 times and have opened 5 packs of Red Eyes Black Dragon booster.
Weevil Underwood (lvl2 duelist)Beaten all lvl 1 duelists for 3 times and have opened 5 packs of Black Skull Dragon booster.
Bonz (lvl2 duelist)Beaten all lvl 1 duelists for 3 times and have opened 5 packs of Barrel Dragon booster.
Mako Tsunami (lvl2 duelist)Beaten all lvl 1 duelists for 3 times and have opened 5 packs of Black Luster booster.
Mai Valentine (lvl 3 Duelist)Beaten all lvl 2 duealists for 5 times and have Harpy's Feather Duster in trunk
Bandit Keith (lvl 3 Duelist)Beaten all lvl 2 duealists for 5 times and have Barrel Dragon in trunk
Joey Wheeler (lvl 3 Duelist)Beaten all lvl 2 duealists for 5 times and have Jinzo in trunk
Maximillion Pegasus (lvl 3 Duelist)Beaten all lvl 2 duealists for 5 times and have Toon world, Toon Blue eyes and Toon Summon Skull in trunk
Ghoul (lvl 4 duelist)Defeated all the lvl 3 duelists 7 times
Marik Ishtar (lvl 5 duelist)Deafeat Ghouls 5 times (1 for each ghoul)
Arkana (lvl 4 Duelist) (Ghoul)Defeat Marik Ishtar once
Rare Hunter (lvl 4 Duelist) (Ghoul)Defeat Marik Ishtar once
Umbra & Lumis (lvl 4 Duelist) (Ghoul)Defeat Marik Ishtar once
Strings (lvl 4 Duelist) (Ghoul)Defeat Marik Ishtar once
Odion (lvl 4 Duelist) (Ghoul)Defeat Marik Ishtar once
Ishizu Ishtar (lvl 5 duelist)Defeat Marik Ishtar and Ghouls 10 times each and have a full monster deck (meaning no magic or traps in deck)
Kaiba (lvl 5 duelist)Defeat Ishizu Ishtar 10 times
Shadi (lvl 5 duelist)Defeat all duelists 10 times each
SimonBeat all tier 5 duelists 15 times each. Duel either Anzu, Honda, or Trusdale three times in a row and on the fourth time, Simon will be unlocked.
Duel ComputerBeat all tier 5 duelists 15 times each. Duel Seto Kaiba three times in a row, and on the fourth time, the duel computer will be unlocked.
Yami BakuraBeat all tier 5 duelists 15 times each. Duel Bakura three times in a row, and on the fourth time, Yami Bakura will appear and be unlocked.
Yami MarikBeat all tier 5 duelists 15 times each. Duel Marik three times in a row, and on the fourth time, Yami Marik will appear and be unlocked.
Yami YugiBeat all tier 5 duelists 15 times each. Duel Yugi three times in a row, and on the fourth time, Yami Yugi will appear and be unlocked.

 

Unlockable - Unlock New Boosters

Relinquished PackBeat Rex Raptor 10 times.
Toon Summoned Skull PackBeat Espa Roba 10 times.
Jinzo PackBeat Weevil Underwood 10 times.
Thousand Eyes Restrict PackBeat Bonz 10 times.
The Masked Beast PackBeat Mako Tsunami 10 times.
Zombyra the Dark PackBeat Mai Valentine 10 times.
Dark Ruler Ha Des PackBeat Bandit Keith 10 times.
Yamata Dragon PackBeat Joey Wheeler 10 times.
Guardian Sphinx PackBeat Maximillion Pegasus 10 times.
Blue Millennium PackBeat Rare Hunter 10 times.
Green Millennium PackBeat Strings 10 times.
Gold Millennium PackBeat Odion 10 times.
Purple Millennium PackBeat Umbra & Lumis 10 times.
Red Millennium PackBeat Arkana 10 times.
Green Premium PackBeat Simon twenty times
Pink Premium PackBeat Yami Bakura twenty times
Orange Premium PackBeat Yami Marik twenty times
Purple Premium PackBeat the Duel Computer twenty times
Blue Premium PackBeat Yami Yugi twenty times

 

Unlockable - Unlock the Limitation option

To unlock the limitation option, get 100% completion by collecting every single card in the game. Now you can choose to have restricted cards to be no longer restricted.
 

 

Glitch - Keep Volt Girl on the field

Volt Girl is a powerful 1900 ATK Light element monster that is immediately destroyed if you have a non-Light element monster face-up on your side of the field. However, if you use Snatch Steal to take a non-Light monster from your opponent, it doesn't count as a monster on your side of the field, and therefore Volt Girl lives. This doesn't work with Change of Heart.
 

 

Glitch - Spirit Reaper Glitch

Spirit Reaper's effect states that it cannot be destroyed as a result of battle, making it a perfect shield, but if it is targeted by a magic, trap, or monster effect card, then it is destroyed immediately (this includes equip magic cards such as United We Stand or Axe of Despair). However, if you use an equip card on Spirit Reaper, the equip magic card will be destroyed, but Spirit Reaper will remain on the field.Spirit Reaper's effect states that it cannot be destroyed as a result of battle, making it a perfect shield, but if it is targeted by a magic, trap, or monster effect card, then it is destroyed immediately (this includes equip magic cards such as United We Stand or Axe of Despair). However, if you use an equip card on Spirit Reaper, the equip magic card will be destroyed, but Spirit Reaper will remain on the field.
 

 

Secret - Permanently Unlock Duelists

Certain 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 ten times, they will be permanently selectable, regardless of their past requirements. For example, if you beat Jounouchi ten times, you can then duel him even if you have a Jinzo card in your deck. Losses and ties don't count against your total wins.
 

 

Secret - Faster Duel Speed

When choosing a duelist, hold down L until the duel starts. The gameplay speed will be twice as fast.
 

 

Password - View the staff credits again.

To do this, you must have already viewed the staff credits at least once. To view the credits again, press Up, Up, Down, Down, Left, Right, Left, Right, B, A at the selection menu.
 

 

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