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Air Date (US) April 19th, 2004
Air Date (France) September 3rd, 2003
Written by Frédéric Lenoir
Storyboard by Thomas Astruc
Season 1
Episode # 1
Production # 101
Preceeded by Production: N/A
Chronological: X.A.N.A. Awakens
Followed by Seeing Is Believing

Teddygozilla is the first episode of Code Lyoko; the chronological one being the two-part prequel being X.A.N.A. Awakens.


Milly and Tamiya are doing a report on the school prom. They try to interview Sissi, who was prom queen last year, but she turns them down and makes fun of their age. Milly tries to ask Ulrich out, and he turns her down because he's going to the dance with Yumi. Upset, Milly storms off. In her room, she tells Tamiya that she hates everyone, unaware that X.A.N.A. is listening from her computer. When Milly tells her teddy bear that she wishes she were bigger and leaves it in the garden shed, X.A.N.A. possesses it and uses it to attack those who had made fun of her.

It then increases the teddy bear's size to roughly two stories and sets it on the town. Since Ulrich had to protect the school and warn Yumi, it's up to Odd to go to Lyoko and help Aelita deactivate the tower to protect the rest of the town from the rampaging teddy bear. After a return to the past, Milly asks Ulrich to the dance again, and Ulrich says yes, embarrassing Sissi.


  • The original French name for this episode is the same as the English.
  • The activated Tower's red aura is particularly faint in this episode.
  • The loading time for Odd to get into Lyoko is only a bit less than a second. In later episodes it is 2–3 seconds.
  • Odd says "Impact" after defeating a monster. After this episode, this line would be used exclusively by Ulrich.
  • It is very unlikely that Ulrich would beat the teddy bear to Yumi's house since he was simpily following the bear tracks.
  • This episode is the real first appearance of X.A.N.A.
  • First appearances of the Megatanks and Kankrelats.
  • This is the first time the Desert Sector was shown, making it the first sector shown, in terms of production order.
  • First of two episodes in which Odd was voiced by Christophe Callabero.
  • First of three episodes in which Sissi was voiced by Christine Flowers.


  • When Jeremie is loading Odd's Lyoko ID Card, all of the other cards are all of Odd's instead of Yumi and Ulrich.
  • On Cartoon the name of this episode is Teddygodzilla (possibly mistaken from Code Lyoko the Adventure begins with the name error Teddy-Godzilla)
  • When the Kankrelats are first seen, there are only four of them, but soon after that all five are seen.



Code Lyoko S01E001 Code Lyoko Season 1 Ep 1 Teddy Gozilla23:12

Code Lyoko S01E001 Code Lyoko Season 1 Ep 1 Teddy Gozilla

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