The Demon was a nice touch.  I did not quite understand the mechanics with the tracks and such but I feel like it had a lot of potential.  

>What was the most frustrating moment or aspect?

Waiting around without the ability to speed up time can get a little samey, but I get it's part of the design.

>What was your favorite moment or aspect?

I just enjoy the whole central loop now. Waiting around for trains, flipping switches, and oh hi demon! I think the up|down piece of paper at the top of the window actually helped, but my opinion is affected by playing previous versions.

>Was there anything you wanted to do, but couldn't?

Accelerate time.

Amazing project for a solo developer! Really liked the mood and the ambient, the tick of the clock fiddling with your nerves, the mix of 2D and 3D... Good entry, congrats!

I really liked the frantic feeling of having to tend to calls, flip the levers, and deal with the monsters all at the same time. The 10 minute timer though felt really punishing if I made a mistake, since I'd have to go through the entire level again. Great art and sound effects!

Oh no, not the trolley problem!

Hahaha, but really, I've loved the core idea of the game, it has such a tense buildup.
Also, loved the scenery, with the 2d pixelated cabin and the 3d world outside, great job!

One constructive feedback I could give would be to have a smoother learning curve, I had a lot of trouble getting the hang of it. Maybe the first level should be way easier?

Nevertheless, congratulation on such a cool and original submission!