This is a list of quests in Yu-Gi-Oh! Duel Arena, and the opponents they feature.
Stage 1: Introduction to Duel / How to play[]
- Stage 1 - 1: Yami Yugi 1
- Stage 1 - 2: Yami Yugi 2
- Stage 1 - 3: Yami Yugi 3
- Stage 1 - 4: Jaden Yuki (Stage 1)
- Stage 1 - 5: Yusei Fudo (Stage 1)
- Stage 1 - Boss: Yuma Tsukumo (Stage 1)
Stage 2: Beginner / Duel Basics![]
- Stage 2 - 1: Harpie Girl
- Stage 2 - 2: White Magician Pikeru
- Stage 2 - 3: Ebon Magician Curran
- Stage 2 - 4: Time Wizard
- Stage 2 - 5: Gearfried the Iron Knight
- Stage 2 - Boss: Insect Queen
Stage 3: Beginner / Fusion & LV Monsters![]
- Stage 3 - 1: Mokey Mokey
- Stage 3 - 2: Ojama Trio
- Stage 3 - 3: VWXYZ-Dragon Catapult Cannon
- Stage 3 - 4: Armed Dragon LV10
- Stage 3 - 5: Super Vehicroid Jumbo Drill
- Stage 3 - Boss: Ancient Gear Golem
Stage 4: Beginner / Synchro Summons![]
- Stage 4 - 1: Neo-Spacian Grand Mole
- Stage 4 - 2: Junk Synchron
- Stage 4 - 3: Morphtronic Celfon
- Stage 4 - 4: Sunny Pixie
- Stage 4 - 5: Dark Resonator
- Stage 4 - Boss: T.G. Wonder Magician
Stage 5: Beginner / Xyz Summons![]
- Stage 5 - 1: Kurivolt
- Stage 5 - 2: Melomelody the Brass Djinn
- Stage 5 - 3: Gogogo Golem
- Stage 5 - 4: Tin Goldfish
- Stage 5 - 5: Number 12: Crimson Shadow Armor Ninja
- Stage 5 - Boss: Number 17: Leviathan Dragon
Stage 6: Applied Theory / Duel Grab Bag[]
- Stage 6 - 1: Penguin Soldier
- Stage 6 - 2: Marshmallon
- Stage 6 - 3: Jinzo
- Stage 6 - 4: Des Koala
- Stage 6 - 5: Phoenixian Cluster Amaryllis
- Stage 6 - Boss: Exodia
Stage 7: Legendary Magicians[]
- Stage 7 - 1: Dark Magician Girl
- Stage 7 - 2: Dark Magician
- Stage 7 - 3: Witch of the Black Rose
- Stage 7 - 4: Gagaga Girl
- Stage 7 - 5: Gagaga Magician
- Stage 7 - Boss: Dark Paladin
Stage 8: Legendary Warriors[]
- Stage 8 - 1: Black Luster Soldier
- Stage 8 - 2: Gilford the Lightning
- Stage 8 - 3: Elemental HERO Shining Flare Wingman
- Stage 8 - 4: Elemental HERO Neos
- Stage 8 - 5: Junk Warrior
- Stage 8 - Boss: Number 39: Utopia
Stage 9: Legendary Dragons[]
- Stage 9 - 1: Red-Eyes B. Dragon
- Stage 9 - 2: Blue-Eyes White Dragon
- Stage 9 - 3: Cyber Dragon
- Stage 9 - 4: Black Rose Dragon
- Stage 9 - 5: Galaxy-Eyes Photon Dragon
- Stage 9 - Boss: Stardust Dragon
Stage 10: Forces of Light[]
- Stage 10 - 1: Winged Kuriboh
- Stage 10 - 2: Ancient Sacred Wyvern
- Stage 10 - 3: Ryko, Lightsworn Hunter
- Stage 10 - 4: The Agent of Mystery - Earth
- Stage 10 - 5: Hieratic Sun Dragon Overlord of Heliopolis
- Stage 10 - Boss: Constellar Ptolemy M7
Stage 11: Apostles of Darkness[]
- Stage 11 - 1: Skull Servant
- Stage 11 - 2: Summoned Skull
- Stage 11 - 3: Reign-Beaux, Overlord of Dark World
- Stage 11 - 4: Black-Winged Dragon
- Stage 11 - 5: Evilswarm Ouroboros
- Stage 11 - Boss: Inzektor Giga-Mantis
Stage EX1 (12): Yu-Gi-Oh! BIG-V[]
- Stage 12 - 1: Deepsea Warrior
- Stage 12 - 2: Nightmare Penguin
- Stage 12 - 3: Judge Man
- Stage 12 - 4: Robotic Knight
- Stage 12 - 5: Jinzo
- Stage 12 - 1: Five-Headed Dragon
Stage EX2 (13): The New Challengers[]
- Stage 13 - 1: Odd-Eyes Pendulum Dragon
- Stage 13 - 2: El Shaddoll Construct
- Stage 13 - 3: Saffira, Queen of Dragons
- Stage 13 - 4: Baxia, Brightness of the Yang Zing
- Stage 13 - 5: Stellarknight Delteros
- Stage 13 - Boss: Apoqliphort Towers