X.A.N.A. has made a lot of attacks on the real world and on Lyoko. All of them have been to destroy (or stop) the Lyoko Warriors in any way possible. He tries to come up with new tactics and new ideas.
Season One: Episodes 1-26 (2003-2004)
Teddygozilla Possesses Milly's Teddy Bear and transforms it into a giant which tries to crush the Lyoko Warriors.
Seeing Is Believing Tries to overload a nuclear power plant by storing electricity in a electrical pylon and unleashing it on the plant all at once, which would wipe out the entire region.
Holiday in the Fog Possesses several barrels full of poison and turns it into a deadly, living gas.
Log Book Possesses the bus and send it on a one-way course to the nearby nuclear plant.
Big Bug Created a computer virus and sent it out on the Internet. All the city’s data-bases have been damaged. The railway control center has been hit very hard and can no longer stop two of its trains which are on a collision course. One having deadly chemicals as cargo.
Cruel Dilemma Possesses two bulldozers and sets them on the factory to prevent Aelita's materialization from taking place.
Image Problem Traps Yumi in a Guardian and sends a Spectre in her place in order to destroy the scanners.
End of Take Possesses an alien monster prop and uses it to capture Ulrich and Sissi and use them as bait for the others.
Satellite Takes over a military satellite and turns it on the school (specifically on Yumi).
The Girl of the Dreams X.A.N.A. traps Aelita in a Guardian and takes control of the samurai costume from Yumi's history project, setting it on the group, namely Yumi.
Plagued X.A.N.A. possesses a rat that tries to sneak a bite from the school's kitchen. That rat goes on to bite other rats, putting them under X.A.N.A.'s control. These rats then attacks Kadic.
Swarming Attack After failing with an army of rats, X.A.N.A. attempts a similar tactic using hornets.
Just in Time Uses ultrasound waves to cause the school to fall apart.
Traps Sissi, Ulrich, and Yumi in the elevator shaft.
Jeremie and Odd have to deal with the possessed factory equipment.
Laughing Fit Uses laughing gas to attack the Lyoko Warriors.
Claustrophobia Surrounds the cafeteria in electricity, leaving Ulrich, Odd, and several other students traps inside with no way out.
Amnesia Possesses several nanobots to attack memory cells, leaving Ulrich and other students and teachers affected with amnesia.
Killer Music Creates a song that puts anyone who hears it in a coma.
Frontier No attack.
The Robots Creates a robot to eliminate the Lyoko Warriors.
Zero Gravity Zone Concentrates the city's electricity on the school, turning it into zero-gravity zone.
Routine Sabotages the devirtualization program, putting the Lyoko Warriors at risk of disappearing forever.
Rock Bottom? Causes the ground to turn to mud, causing all the buildings to start sinking into the ground.
Ghost Channel Traps Odd, Ulrich, and Yumi in a Simulation Bubble and trys to lead them to fake Scanners to delete them forever.
Code: Earth Sends Bloks to guard a tower and later, two Megatanks to destroy the tower to prevent Aelita from being materialized.
False Start Materialized several Kankrelats on to Earth.
Season Two: Episodes 27-52 (2005-2006)
New Order Traps Yumi and Ulrich in the boiler room of the Hermitage.
Unchartered Territory Takes Aelita to Sector 5 with the Transport Orb so the Scyphozoa can steal her memory.
Exploration No attack.
A Great Day
Repeatedly activated the Return To The Past in order to get stronger.
Mister Pück Possesses Jeremie and kidnaps Aelita in order to deliver her to the Scyphozoa.
Saint Valentine's Day Sends a possessed man to leave a necklace for Aelita that eventually possesses her, compelling her to go to Lyoko and give up her memories.
Final Mix Possesses Jim to kidnap Aelita and bring her to the Scyphozoa.
Missing Link Steals Yumi's human DNA using the Scyphozoa, preventing her from being materialized back to Earth. He has predicted that Aelita will transfer her human DNA to Yumi, which will cause her memory to be exposed.
The Chips Are Down Possesses Nicholas so he can sabotage the devirtualization program.
Marabounta No attack.
Common Interest Possesses a criminal to get a nuclear battery to recharge the supercomputer. He then attacks Jeremie.
Possesses Rosa Petitjean to stop the Lyoko Warriors from leaving the cafeteria.
Possesses Jeremie's ambulance and drives it into the river.
A Bad Turn Materializes Krabs into the real world.
Attack of the Zombies Possesses Kiwi, making anyone he bites turn into a mindless zombie.
Ultimatum Possesses Principal Delmas and kidnaps Odd and Yumi. He sends Jeremie an ultimatum: 2:30 PM, Aelita must go to the Ice Sector and give her memory to the Scyphozoa or Odd and Yumi will be liquidated (killed in a painful way).
A Fine Mess No attack.
X.A.N.A.'s Kiss Send a polymorphic spectre that can change its appearance at will, to devide and conquer the group. It then kisses random people at Kadic. This way, X.A.N.A could divide and conquer the group.
Vertigo Possesses three wolves and creating illusions of other wolves to hunt down Ulrich, Odd, and Yumi.
Cold War Creates a blizzard that traps the warriors in school.
X.A.N.A.'s implanted virus is stimulating Aelita's cerebral cortex, placing her in an artificial sleep, thus causing her to see a vision of Men In Black and Franz Hopper. She goes to Sector 5 to find the source of her vision, falling into X.A.N.A.'s trap.
Tip-Top Shape Possesses Yolanda and kidnaps Aelita.
Is Anybody Out There?
Send a blob-like spectre out to attack the group in midnight.
Sabotages the Superscan.
Franz Hopper Sends a polymorphic spectre disguised as Franz Hopper, to trick the group into turning against Jeremie.
Contact Sissi is possessed by Franz Hopper to make contact with Jeremie, so X.A.N.A possesses The Hospital doctor to attack Sissi.
Sends a spectre to trick Odd into coming into the woods. It then traps him in a well with a hose pouring water into it. The spectre then goes to Lyoko.
Takes control of the tower Jeremy activated, in order to steal the data from Franz Hopper's diary.
Setting traps in Sector 5 by luring Lyoko Warriors into Aelita's fake missing fragment.
Steals Aelita's memory and frees himself from the supercomputer.
Season Three: Episodes 53-65 (2006)
Straight to Heart Attacks the Core of Lyoko.
Lyoko Minus One
Possesses everyone on Yumi's bus (except for her and William in a detention) and chases her through the woods.
Implants a virus to Aelita using Scyphozoa, so he can possess her and make her delete the Forest Sector.
Tidal Wave Possesses all the food in the cafeteria and chases the others.
Hacks a large weapons manufacturing computer and leads the group down false trail.
Possesses two government agents and has them destroy the Supercomputer
Aelita Activates a tower to luring Lyoko Warriors to the tower, while he sends monsters to attack Core of Lyoko.
Possesses a flock of crows and has them attack the group.
Possesses Aelita with Scyphozoa and make her delete the Desert Sector.
Possesses a demolition worker and has him set a bomb in the Factory.
Possesses Aelita with Scyphozoa so she'll delete the Ice Sector. She is devirtualized in time by Yumi.
Temporary Insanity Has two Mantas shoot Odd and Ulrich with a combined-attack-beam, making them believe that they're on Lyoko in the real and the real world on Lyoko. This way, he could attack the Core of Lyoko.
Possessed the groundskeeper and had him fry all the supercomputer's memory boards. This would have caused the supercomputer to explode, keeping them from protecting the Core of Lyoko.
Sent vines after them.
Nobody in Particular
Takes control of Ulrich's body and uses it to attack the core.
Triple Trouble Creates a cloud of smoke that can petrify anyone on contact.
Double Trouble Sends a Jeremie Clone to attack Jeremie and take Aelita to the Scyphozoa, so X.A.N.A. could possess her and make her delete the Mountain Sector.
Final Round Takes control of William using Scyphozoa and has him destroys the Core of Lyoko, thus destroying Lyoko and put William in an almost permanent possession.
Evolution: Episode 96-121 (2012-2013)
X.A.N.A. 2.0 Makes a Jim spectre to steal back the source codes implanted into the Original Lyoko Warriors (excluding Jeremy) by X.A.N.A.
A spectre of a young boy steals code from Ulrich, Yumi and Aelita
Ulrich spectre chases Ulrich through Kadic
Madame Einstein None
William spectre steals source codes from Yumi, and chases Ulrich through Kadic
X.A.N.A. hacks into the phone lines, taking out the warriors phones, severing their communication
Suspicions A student, Remi, is possesed and is cloned in an attempt to retrieve code from Yumi, Odd, and Ulrich
Count-down Sends a polymorphic spectre to retrieve code from the warriors
How to Fool X.A.N.A. A spectre of Theo steals code from Ulrich and Yumi
The Warrior Awakens None
Rendez-vous Sends a specte of Aelita's mother to take Aelita's code
Chaos at Kadic Messing with the grades in the school's computer, causing them to nearly lose the help of Laura Gauthier
Friday the 13th
Messing with lottery, causing thousands of so called "winners"
Putting a virus in the Skid
Steals Odd's remaining codes.
Creates a clone of William to manipulate him.
Confusion Turns on the one who brought him back.
An Assured Professional Future None
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