Yu-Gi-Oh! D.N.Action!

'''Yu-Gi-Oh! D.N.Action!''' is a spin-off of the Yu-Gi-Oh! anime series. It takes place before Yu-Gi-Oh! HEARTZ. It's the first spin-off series in which the manga isn't being serialized in Shueisha's V-Jump, but rather Weekly Shonen Jump. It would've been one of the most popular shounen anime besides the traditional Yu-Gi-Oh! series.

Summary Sypnosis
The series is set in a parallel universe, and takes place in Sigma City, a fictional Japanese city and a bustling metropolis. The city's layout is similar to that of New York City, with the main city being divided into five Districts, four being mainland (Alpha, Beta, Gamma and Delta) and one being an island (Zeta). High-speed monorails allow easy access between the Districts.

Syrus Truesdale becomes a star of the Cyber Art Pro League, along with his brother, Zane Truesdale. Until one day, during a visit to the KaibaCorp, Syrus gets himself into a shocking accident that fuses his DNA with the DNAs of the eight legendary duelists of different eras and dimensions: Yugi Muto, Jaden Yuki, Yusei Fudo, Yuma Tsukumo, Yuya Sakaki, Yusaku Fujiki, and Yuga Ohdo, which gives him the strength, speed, agility, spirit, and the dueling skills and strategies of these dueling heroes!

Now, with his life turned upside down, not only does Syrus leave behind his Cyber Art Pro League career and become Jaden's and the other duelists' new and genetic brother, but it'll be his turn to become a new duelist hero that goes by the name he gives himself for his new form, Yusuke Soarin, and save the world from new threats with his new skills, a new deck along with a new duel disk, and also learning how use a new summoning ability called DNA Summon!

However, Syrus won't be doing it along as there will be some new friends and new monsters to add to his deck along his way, while he still has a lot to learn how to use his new abilities and how to use the new summoning skill if he'll have to prevent Master Obsidus from affecting all humans and duel monsters with Dark DNA.

Main
Yusuke Soarin (Syrus Truesdale)/Yusuke Marufuraito (Sho Marufuji)

The main character who used to work for the Cyber Art Pro League with his older brother, Zane Truesdale, until during a visit to KaibaCorp with their old friends, a shockwave accident occurs in Syrus that causes his DNA to be infused with the DNAs of the eight duel heroes. Since he has all seven of the DNAs combined with his DNA, including Jaden's DNA, Syrus becomes the genetic brother of them and learns that will have to use his new abilities, intelligence, and skills of those duelists to protect his friends and the world from evil, like the Master of Dark DNA, Master Obsidus, by using a new watch-like device called a Duel Watch that transforms into a duel disk when he transforms into his alias form, Yusuke Soarin (Yusuke Marufuraito in Japanese dub), and use a new duel summoning ability called DNA Summon.

His ace monster is the DNA duel monster Jumpstart Dragon and his spirit partner is Junkuriboh.

Besides "Ah man!", Syrus' new main catchphrase is "Time to DNA Charge!" when he DNA fuses his monsters to create a new and stronger monster.

Zane Truesdale/Ryo Marufuji

The older brother of the main protagonist who is the Cyber Art Pro League until his heart problems caused him to be weakened because of his deck that is now owned by Syrus. When he and Syrus were kids, he gave a copy of his Power Bond card to him but told him to not use it for play which made Syrus develop a lack of confidence until their year at Duel Academy, Syrus had managed to prove Zane wrong by becoming a stronger duelist thanks to Jaden Yuki, who was soon the genetic brother of Syrus in the future after Syrus had his DNA fused with his, along with the other DNAs of the seven legendary duelists.

Although his younger brother's DNA is infused with the legendary duelists' DNAs, including Jaden's DNA, he still remains as a Truesdale.

Jaden Yuki/Judai Yuki

A handsome, hot-blooded and famous Slifer Red duelist who graduated from Duel Academy like Syrus and their friends, and is now a world traveling duelist who is thriving to be the next King of Games like Yugi Muto. He was an only child, but after Syrus had his DNA fused with his DNA, along with the other DNAs of Yugi, Yusei, Yuma, Yuma, Yusaku, and Yuga, he becomes the genetic other brother of him. His ace monster is the Elemental HERO Neos and his spirit partners are Winged Kuriboh and Yubel, who is fused with Jaden after their duel in another dimension.

Mana Blossom (Dark Magician Girl)/Mana Koizumi (Black Magician Girl)

The new girl in town who is actually the card spirit, Dark Magician Girl, come to life and in disguise, and has a crush on Yusuke/Syrus. She is also one of his friends who know about his secret identity when she heard about the accident he got himself into at KaibaCorp.

Mahad Dark (Dark Magician)/Mahad Ueda (Black Magician)

Mana’s mentor who, like her is, is also a card spirit in disguise.

Connor Akashi/Daiki Akashi

A very energetic and humble duelist who met Yusuke when he was on his way to the boat that would take them to the Island of Legends as he was the one who told him about it that Yusuke decided to invite his friends over to come with him.

Bryan Everglade/Kaede Miura

A small and very intimidated duelist who was picked on by a group of bullies, who made fun of him and his deck, until Yusuke stood up for him by dueling the leader of the gang. He has a great sense of honesty and holds a deck full of plant-type monsters and Fluffal archtype monsters.

Jarred Peridot/Akira Kato

Yusuke's rival who holds gem monsters in his deck and envies the main protagonist because of his DNA duel monsters that he thrives to be better than him by dueling him, only to lose. However, he begins to warm up to Yusuke (despite not knowing his true identity) and becomes an ally to him, although he still keeps his snarky personality.

Supportive Characters
Yugi Muto

The King of Games, as people like to call him, and the first legendary duelist in history. He carries the Millenium puzzle that his grandfather gave him to unlock that transforms him into the Yami version of himself when he is challenging someone in a duel. His ace monster is the Dark Magician and his spirit partner is Kuriboh.

Yusei Fudo

The mature and stoic duelist who can burn rubber when riding his Yusei Go Duel Runner and has no problem Synchro summoning his monsters in a duel. His ace monster is the Stardust Dragon and his spirit partner is the Crimson Dragon.

Yuma Tsukumo

The energetic and determined duelist who has a sense of action, and is never afraid to back down from a duel. His ace monster is the Number 39 Utopia and his spirit partner is Rainbow Kuriboh.

Villains
Master Obsidus The main antagonist who plots to use Dark DNA to affect both humans and Duel Monsters to take over both the Duel Monsters Spirit world and the human world, but his plans are always foils by Yusuke/Syrus and his friends, who won't stop at nothing than to duel his minions and their own Dark DNA duel monsters.

Micro Menace One of Master Obsidus' henchmen who are sent to Earth to infect both duelists and their decks with Dark DNA. He is the younger brother of Giga Beth.

Giga Beth Another one of Master Obsidus' henchmen that have a mission to infect all duelists and Duel Monsters with Dark DNA. Unlike her brother, Micro Menace, she is intelligent and thinks before she acts, but even her smarts aren't enough to stop Yusuke/Syrus and his DNA monsters.

Locations

 * Domino City
 * Sigma City
 * New Domino City
 * Heartland City
 * Standard Dimension
 * Fusion Dimension
 * Xyz Dimension
 * Pendulum Dimension
 * Satellite
 * Barian World
 * DNA-verse

Music
Opening Music: DNA Charge! (international) / Light Colors by Lia, covered by KENN (Japan)

Ending Music: DNA Charge! Instrumental (international) / Get Up & Move!! by Koda Kumi, covered by KENN (Japan)

Season 1

 * Episode 1: DNA Charge!
 * Episode 2: The Duel Watch
 * Episode 3: Meeting the Heroes
 * Episode 4: Jump Start!
 * Episode 5: Flaming Hot!
 * Episode 6: Dragon Slayer
 * Episode 7: A Need for Speed
 * Episode 8: A Blast from the Past
 * Episode 9: Future Express
 * Episode 10: Check My Flow
 * Episode 11: The Show Must Go On!
 * Episode 12: Going Viral
 * Episode 13: Yusuke Makes a Stand
 * Episode 14: Rush Hour!
 * Episode 15: Into the Darkest Deep
 * Episode 16: Fairy King Syrus Truesdale
 * Episode 17: Swing into Action!
 * Episode 18: That's the Spirit
 * Episode 19: Love Zaps
 * Episode 20: Performapal Panicry!
 * Episode 21: High Score
 * Episode 22: Blowing a Fusion
 * Episode 23: Making a Run For It!
 * Episode 24: X, Y, Z
 * Episode 25: The Cyber Art Pro League Championship
 * Episode 26: Running to the Finish
 * Episode 27: DNA Hero
 * Episode 28: This Really Stings!
 * Episode 29: It's About Time (Part 1)
 * Episode 30: It's About Time (Part 2)

Season 2

 * Episode 1: Master Obsidus' Reveal
 * Episode 2: Reach for the Stars
 * Episode 3: A Royal Pain
 * Episode 4: Dueltaining Training
 * Episode 5: Burning Rubber
 * Episode 6: Circus Act
 * Episode 7: Going in Flames!
 * Episode 8: Snack Attack
 * Episode 9: Enter Crow's Nest
 * Episode 10: Under the Spotlight
 * Episode 11: Perfect Timing
 * Episode 12: Slow and Steady
 * Episode 13: Secrets Unveiled
 * Episode 14: In All of History
 * Episode 15: DN-Fection
 * Episode 16: Claws Off!
 * Episode 17: Duel Ghouls Return
 * Episode 18: Stand Out, Stand Up
 * Episode 19: Hear Them Shout
 * Episode 20: Split Up
 * Episode 21: Surfing the Web
 * Episode 22: Another One Bites the Dust
 * Episode 23: Titanium Attack!
 * Episode 24: Spinning Strategy
 * Episode 25: A Shocking Surprise!
 * Episode 26: Sweet But Spicy
 * Episode 27: The Prince and the Duelist
 * Episode 28: Fangs A Lot!
 * Episode 29: DNA Rampage! (Part 1)
 * Episode 30: DNA Rampage! (Part 2)

Season 3

 * Episode 1: Mermaid of A Lifetime
 * Episode 2: Micro Maniac
 * Episode 3: Click Away!
 * Episode 4: Humor Me!
 * Episode 5: Junkuriboh Powers Up!
 * Episode 6: The Kuriboh Bash
 * Episode 7: Watch Me Whip It!
 * Episode 8: Dueling on the Seven Seas
 * Episode 9: The Duel Party Palooza
 * Episode 10: Smile World
 * Episode 11: It's All Fun and Games
 * Episode 12: Party Crashers
 * Episode 13: Disappearing Drama
 * Episode 14: Mystery Run In
 * Episode 15: Finish What You've Started
 * Episode 16: Heading Back Home
 * Episode 17: Card Battle
 * Episode 18: Traps Setup
 * Episode 19: Rock and Roll!
 * Episode 20: A Change of Heart
 * Episode 21: A Shocking Surprise!
 * Episode 22: An Unexpected Guest
 * Episode 23: Room for One More
 * Episode 24: A Friend Indeed
 * Episode 25: Spell Test
 * Episode 26: Something's A Mist
 * Episode 27: Cold Feet
 * Episode 28: Just Warming Up
 * Episode 29: An Icy Challenge (Part 1)
 * Episode 30: An Icy Challenge (Part 2)

Season 4

 * Episode 1: An Unexpected Disappearance
 * Episode 2: Missing Jaden
 * Episode 3: Reckless Rescue
 * Episode 4: Attack of the Dark DNA Duelists
 * Episode 5: Double Trouble!
 * Episode 6: For the Sake of the Legends
 * Episode 7: Bizarre Betrayal
 * Episode 8: Strong Winds
 * Episode 9: The Ultimate Transferation
 * Episode 10: Dark DNA Infection!
 * Episode 11: King of Dark DNA
 * Episode 12: Jaden VS The Dark DNA King
 * Episode 13: Breaking Through the Dark
 * Episode 14: Light Over Darkness
 * Episode 15: Shine Some Light (Part 1)
 * Episode 16: Shine Some Light (Part 2)
 * Episode 17: Freedom At Last
 * Episode 18: Going Back Home
 * Episode 19: DNA Test
 * Episode 20: Yusuke or Syrus?
 * Episode 21: The Ultimate Decision
 * Episode 22: It's Go Time!
 * Episode 23: An Unexpecting Arrival
 * Episode 24: Paradox For Such a Long Time
 * Episode 25: A Duel in Time
 * Episode 26: Slice of Power
 * Episode 27: DNA Supercharge! (Part 1)
 * Episode 28: DNA Supercharge! (Part 2)
 * Episode 29: A New Member of the Duelist Brotherhood
 * Episode 30: A Bright Future

Trivia

 * Unlike the previous Yu-Gi-Oh! series, the Western version of this one finally lacks various plot edits and censorships that 4Kids had ever done, making it more loyal to the original Japanese version.
 * It's the action-oriented influence of the Power Rangers franchise, combined with the strategy and cleverness of previous seasons.
 * This is the second time Syrus becomes the main protagonist.
 * The first time was in Loving Jaden, the shounen ai spin-off of Yu-Gi-Oh! GX.