About the characters

- Jim says he has a first aid certificate.
- The fact that XANA’s monsters bow respectively shows that XANA has conceived some human-like values such as recognition.
- Sissi has been in love with Ulrich since pre-school (though in the English dub she says elementary school), saying that “fairytales or cheap, magazine-style romance stories” aren't her thing. William says he believes in true love.
- William tells Ulrich that if he doesn’t talk to Yumi, he will. Moreover, we learn from Sissi that William has been at Kadic for a few months and that he’s a boarder.

About errors

- The factory microphone disappears in one shot.
- The silver part on Aelita’s dress is purple when she says she has Italian homework.
- The marks on Odd’s face and his hair splotch disappear in two shots when he tells Jeremy he doesn’t want to end up like chewing gum.
- The pink marks under Aelita’s eyes disappear in one shot before the Krabe saves her.
- The colour of Ulrich’s board shorts change after William dives.
- When William resurfaces while saving Ulrich, for a second he has Ulrich’s hair colour, then it changes back.
- The students in Ms Hertz’ class are from mixed classes.
- At the pool, Sissi’s hair changes suddenly (sometimes in a ponytail, sometimes like normal).
- Herb’s hair is entirely black when Sissi asks Ulrich if he’s ok after what happened at the pool.
- When Yumi takes her skateboard, we can see Jeremy’s scooter and Odd’s board, when that shouldn’t be the case.
- Odd’s pants are entirely the darker shade of purple when he asks if Ulrich is ok, when he gets a call from Jeremy, when he tells him that Ulrich is sulking, and when talking about what happened at the pool. They become the lighter shade of purple when he tells Jeremy not to play mad scientist again.
- Yumi’s swimsuit is entirely the one colour before we see Ulrich climb up the diving board, after William asks Yumi to come swim, at the moment when she helps William to get Ulrich out of the water, when Jim arrives, and when she jumps from the diving board. Her swimsuit becomes entirely the darker colour after Sissi tries to give Ulrich mouth-to-mouth.
- A Tarantula and Krabe join the line of bowing monsters after the Marabounta is destroyed, despite them all being destroyed beforehand. The other Bloks and Kankrelats also disappear, leaving one of each.
- When Yumi is talking to Jeremy on the phone, we can see a large cat-like plush toy in the corner of her room. When she stands up, it disappears.

About the series

- French title: Marabounta

- Second exploitation of Franz Hopper’s journal which allows Jeremy to create a multi-agent system called Marabounta to try and weaken XANA, but unfortunately he forgot about Aelita’s virus, which makes the Marabounta see her as one of XANA’s monsters.
- First mention of multi-agent systems.
- First argument between William and Ulrich.
- Reappearance of the magazine Sissi read in episode 2, “Seeing is Believing”!
- Yumi’s phone number changed, it’s now (33)665-321-258.

About references

- Jeremy names his program after a phenomenon that exists in the real world: marabounta (which is sometimes written without an O). It’s a Brazilian word denoting a massive migration of army ants which devour anything edible in their path.

- Yumi: “What do you mean, a Chattanooga?”
Chattanooga is the fourth-largest city in the state of Tenessee in the USA.