Wow, this is so clean! Well done level design. Fully thought I got stuck at one part (the two sliding boxes) as I had already gone through once to the initial bubble levels. Was about to give up, when I went back to do a few more rotations in one of the rooms and was able to discover a new doorway. So glad I did, as after a few more challenges I beat it! Really enjoy the additional pops of blue and red to highlight important features in each room.