This was a interesting game. First off: The Audio and Visuals were really good (although the bright cyan colour was a bit too intense for me ;D). I like the idea of a puzzle platformer where you have to switch between 3D and 2D, it fits the theme well!
The biggest weakness of the game is I think the Level Design and some of the mechanics. It feels weird how there are sometimes some
elements of the level just to confuse you? Also, the box presses button mechanic was good but felt clumsy, because if the box is all against the wall you can't pull it to you resulting in restarting the level, annoying! Also, it was confusing that if you're in the end of the level, you sometimes don't get teleported to the next area easily and have to move in the third dimension to reach the goal?
Although, to be honest, Puzzle Platformers aren't my favorite genre, it was still entertaining and I had a few "Ah, now I get it" moments, which were great!