About the characters

- First episode in which Odd destroys a Megatank by impaling the Overboard in its eye!
- First time Aelita uses her Creativity against the Scyphozoa to trap it in a cube of ice!
- Second time Creeper isn’t destroyed in only one hit.
- Third use of Odd’s joke “Say something!” “Something…” by Aelita this time.
- Ulrich has vertigo.
- William has arachnophobia.

About errors

- Just after Odd is shot back towards the wall with the key by a Creeper, he’s seen fighting with the others where he was standing before he got shot.
- When Yumi says “not so fast, dummy” and throws her fan at the Creeper, she’s pictured at the door to the Celestial Dome, when she’s still inside the labyrinth. The opposite happens when a Creeper shoots at Ulrich in the Celestial Dome and it’s pictured in the labyrinth.
- Odd’s undershirt is missing from his torso when he asks Ulrich to come watch him climb, and when Yumi says they have to find Ulrich before they shut down the Supercomputer.
- The doors in the dorms change colour often (black, dark brown).
- The factory microphone disappears from Jeremy’s ear though he didn’t remove it before going down to the scanner room.
- When Ulrich is pushed by one of the wolves, he drops his phone, but it’s not his we see but Jeremy’s.
- At the moment when Aelita says she’s turned invisible, the desk in Jeremy’s room is covered in stuff when it wasn’t before.
- Before confronting the wolves, Ulrich picks up a stick at his feet which wasn’t there when the heroes arrived at the foot of the cliff before.
- The colours of Odd’s pants are inversed when he climbs the cliff after Yumi.

About the series

- French title: Vertige

- The form of attack is similar to the ones in episodes 11 “Plagued,” 12 “Swarming Attack,” 58 “The Pretender,” and 74 “I’d Rather Not Talk About It”.
- First appearance of a Creeper in the Celestial Dome.
- First time Odd is called scrawny, which will happen often in future.
- There’s water you can swim in in the Ice Sector!
- In the Ice Sector, Odd dips one of his feet in the water and shivers from the cold, but you don’t have a sense of touch on Lyoko, so you can’t feel temperature…

About references

- Odd (at the top of the climbing wall): "I’m the king of the world!"
This line comes from the highly successful movie “Titanic” directed by James Cameron. It’s shouted by one of the two main characters, Jack, when he’s at the bow of the cruise ship, gliding across the ocean!

- Odd: “So, Aelita, what’s it like being invisible? I always wanted to be like, you know, Sue in the Fantastic 4!”
The Fantastic 4 are humans who, after a stellar expedition that went wrong, underwent changes and gained superpowers! Susan can turn invisible and create force fields.

- William : "C’mon, huh, Spider-Man! You spinning a web or did you fall asleep?”
Spider-man is a superhero whose adventures are recorded in comic books, cartoons and films. It’s the story of young Peter Parker who is bitten by a genetically modified radioactive spider and gains spider-like powers and abilities, like spinning webs, climbing walls, etc…