What I found kind of funny is that even while "3D" the character was still technically 2D. Sure, the perspective seems 3D, but the walls and the character sprite all still look 2D, and the character only ever moves in 2 dimensions. It's almost as if the character can't even imagine a 3rd plane of existence...
Anyways, I really loved this game! Pretty good writing and interesting mechanic (though the infinite respawning without any consequences made it seem a bit trivial and tedious). The platforming section was really fun, and the maze had a great atmosphere, I could totally see that part getting turned into an actual horror game. My only issue was that I had to start over once because my game was bugged and wasn't progressing to the 3D phase when I stood still, but it took me quite a few minutes to realize that. It was my first time playing, so I just figured it was part of the game and I was supposed to keep going or keep waiting until something changed. Restarting fixed it though and the 3D part triggered no problem.