This is a really impressive game to have been made in scratch in such a short time. I was impressed you have some pretty particular platformer mechanics like wall sliding, jumping and seemingly coyote time!
I think my biggest piece of feedback for this game is that it is really difficult! I would look into trying to ease out the difficulty curve by adjusting the level design.
This screen below I had so much trouble with. I understand the lesson is to have the player hold W to jump higher, so that you can then rotate the player to fall to safety. I think I would have introduced the hold W to jump higher in a safer screen, like using it to get up to a ledge. I thought at first this was what this screen was going for, but when I jumped over the triangles I would just die because of the slide.
Excellent job!