Wow, there's a lot of game here! I know you said you used asset packs on the game page, but you did a good job of combining them all into a really coherent look and sound that's strong aesthetically, and that takes skill. Really nice feedback on the jumping. The puzzles were satisfying to complete, a nice different take on the portal dynamic where you have to find something that will kill you. Really hits the theme well. The only minor nitpick I ran into is sometimes I'd run into a collider or otherwise somehow get stuck on the floor and have to jump to get past it, but it doesn't actually stop me from finishing the game or anything, so it wasn't a big deal. In any case, great work!