A very addictive fun game. Nice work on the tutorial, love the setting and everything about it.
I think I found a bug in the tutorial you can just drop one iron ingot and the truck will leave without getting 2, but later I can't recreate it. Maybe I do accidentally push an ingot in without noticing.
The BGMs is cool, but not sure if it's dynamic or fixed track, there have multiple time when the BGM change the phase, I thought that I got not time, but end up with still a minute or two, the game is actually some how relaxing when you in the phase, so the pressuring music when you still have a minute feel somehow not in tune with actual emotion.