I’m trying to find a movie or series, it was an anime or some animation if I remember right. I watched it around 2010-2016.

I remember it had school students and they transport to another world or something similar like that. There wasn’t really anything, just ground and big rocks and I remember that the place looked like it was in the sky.

There were some weird ”monsters”, they were small and their shape was like a square block, they tried to kill the students, so then the students and ”monsters” fought and the students killed them I think. I also remember the students hid from the monsters behind the big rocks.

Also if I remember right the students could go back to their own world and then again back to the ”monster” world.

This is everything I can remember, its just how I remember it in my head, so some things are probably not right. I tried looking for this for hours but couldn’t find anything.

  • Hi, welcome to SF&F. What made you think the place they went was in the sky?
    – DavidW
    May 16, 2022 at 11:28
  • Do you remember where you watched it? YouTube? Netflix? Crunchyroll?
    – FuzzyBoots
    May 16, 2022 at 11:47
  • I think I just watched it from a television channel.
    – Lia
    May 16, 2022 at 11:51

1 Answer 1


That sounds like the Mountains Sector from the French cartoon Code Lyoko (2003-2007, four seasons).

From Wikipedia:

Jeremy Belpois, a 12-year-old prodigy attending boarding school at Kadic Academy, discovers a quantum supercomputer in an abandoned factory near his school. Upon activating it, he discovers a virtual world called Lyoko with an artificially intelligent girl named Aelita trapped inside it. Jeremy learns of X.A.N.A., a fully autonomous, malevolent, and highly intelligent multi-agent system, that also dwells within the Supercomputer. [...]

Jeremy works tirelessly to materialize Aelita into the real world and stop attacks caused by X.A.N.A. Jeremy is aided by his three friends Odd Della Robbia, Ulrich Stern, and Yumi Ishiyama, who are virtualized into Lyoko to save both worlds from the sinister virtual entity.

The gang can indeed use the supercomputer to switch between the real world and virtual world at will. No specific episode comes to mind, but the Bloks are met in the Mountain Sector often and hiding behind rocks is a common strategy. Example in this season 1 episode:

Found by memory... This basically being my favourite cartoon ever.

  • If this is the right answer, you can accept it by clicking the checkmark on the left.
    – Jenayah
    May 16, 2022 at 22:22
  • That’s the right one, thank you so much!
    – Lia
    May 17, 2022 at 23:20

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