Love the presentation on this game. The visuals are excellent, the sound and music are excellent, and almost everything feels very polished. There are quite a few game-breaking bugs (I was pushing a box into a portal, and I was going through but the box wasn't, trapping the box behind the portal), and I was stuck on one level for like 10 minutes because of said bugs.
I also forgot/didn't realize that I could pull boxes as well as push, and almost gave up on a level completely before I saw that 'pull' was listed in the controls on the itch description. I would've liked to see pulling be tutorialized, probably with a level that has just a box and a button, where the box can only be accessed by pulling.
But besides those two things, this game is absolutely phenomenal. It feels great to play (bugs aside), and there are some pretty clever puzzles in there. Well done!