I loved that you included a story and cutscenes!! The platforming was pretty fun for me. I almost didn't get to play the game though because I thought the second wall was bugged. I couldn't figure out that you needed to find a specific spot in the wall till I read the other comments here and found that out.

Congratulations on submitting! I read somewhere that, on average, only 20% of jam contestants submit a game. That means that you're already on the top 20% of jammers. For a few notes: first person platforming is pretty difficult, so maybe next time give the player a hand. For example, your floating desks can be tilted, as you did here, but consider using normal boxes as their colliders to avoid players slipping. Also, if you have heard about coyote time, in 1st person platformers it's useful to be very lenient with it to the players. Finally, I was trying to see what happens if you fall off the map, and you just fall off forever. Maybe next time you could add a killbox on the bottom of the map, or at least a restart option to the pause menu. Otherwise, if that happens, I have to quit the game entirely. 

First of all, good job for getting something together in the timeframe of the game jam; for a new game dev of 13yo, I definitely count that as a win right off the bat.

I liked the intro, but the game was pretty difficult from the get go - I almost gave up on the second wall because I couldn't erase it (only realized after lots of trial & error that only part of it was erasable). Then, I gave up after 4-5 minutes of trying to jump on that last floating desk to get to the elevated wall, as the tilted desks are slipping when you don't get on the right part of them, making it very hard to stick the landing. 

Here are a few comments I thought might be worth pointing out to help you out for your next game jam projet (or any project, really!):

• Try to focus on building the core gameplay before adding intros or cinematics, especially if you have limited time; 
• Adding a very basic tutorial or explanation of the controls (even just within the itch.io description) can be very helpful for new players.
• Try to publish a web build early on if you plan on having it playable on the web. This will allow you to discover and debug web build issues early on and to fix them before the deadline.

And a few specific points for this one specifically:

• In your Project Settings, you can allow the window to be resized - you'll almost always want to enable this, as otherwise the game can only be played in a small window.
• When sharing a build, you'll usually want to turn off the "Debug" mode.
• Try to keep your images and/or 3D models (and any other assets, really) light. I have a good computer, yet the game had some trouble loading and starting early on, which I expect is because of this.

In any case, good job on submitting something. I hope to see another submission from you in future jams to see how you progress!