I love the overall feel of the game, the art style and the sound make it feel rather melancholic.
The character sometimes got lost in the scenery a bit for me, perhaps putting him a little bit to the right would be better. So he's not hidden in the corner.
Love the fact that it was randomly generated.
Sometimes when there was specific type of building, the stair like one I could get stuck on the lower part and the game sort of stops. Maybe if you could get the camera to (somehow xD) move independently, it could then be game over if the player gets outside of the screen.
But overall love it. I can see me spending quite some time on this. Was he perhaps chasing the train?