Ooooh, this was really clever. I'd love to see a post jam version of this.
(SPOILERS BELOW HERE in case someone is scrolling through the comments before playing)
I think a few more levels with the spider mechanic before the parallax trick would have been great - as it stands, both the spiders and the parallax come off as curveballs instead of puzzle elements. Letting the player warm up to the mechanics by introducing them in isolation before mixing them is generally best, but the last few levels kinda felt like they were trying to rush through their ideas as fast as possible. Really, just more expanding on the ideas here and playing with them would be great. Parallax spiders you can manipulate in the background? Zooming in and out to hide pits, or only keep very specific pathways visible?
Also, a few new mechanics for a post jam version would be cool. Toggleable HUD layouts that block varying portions of the screen? Splitscreen?
My only real complaint other than 'more content pls' is that an explicit explanation of the rules the player follows would be nice. The WASD popup at the beginning was clever, but I think building on that style of second-person exposition to introduce new mechanics and ideas would be great. In particular, the first level requiring keeping the camera low required a lot of trial and error due to having to work out the specific rules of how the player moves.
Overall, amazing work - especially for 48 hours!