Because my drawing skills are trash and I don't care to spend my time finding some digital program to do this, I've used Minecraft to represent a 3d analogous to the last level. I'd mark it as a spoiler if I could, but here it is:
Yeah, that level kinda sucked. It felt so tedious to play because its kind of unintuitive how the rotation works (which is actually an axis swap not a rotation I believe) and the level is clearly 2 dimensional just displayed poorly. the whole time I was screaming "WHY CAN'T YOU JUST SHOW ME THE WHOLE LEVEL AT ONCE"