Hi! Thanks so much for the constructive input. Aside from fixing the bugs, I plan on fleshing this out a bit more and adding some quality of life changes (as well as levels with more interesting 3D shapes). I agree that the tiles create quite a bit of visual noise, so perhaps I'll add plain white 'wall' tiles to clearly indicate walls instead of the blue rocks/plants. If I can figure it out, I'll add some sort of minimap showing a mini 3D display of the faces of the shape you're on.
You're also right that there should be more of a tutorial. Since I did the final wrap up in such a rush, I didn't want to 'waste' 1 of only 2 levels I created on a tutorial. But I will absolutely add that soon.
Thanks again, and I look forward to trying your game after work :)