Hey!
First off I think it's really impressive how many mechanics you managed to implement in such a short amount of time, definitely hats off to you. I really liked the theme and the characters were pretty funny.
I think that there are a few things that need polish. When choosing a dialogue choice I thought it was weird how it was numbered (1,2) but you had to click on the text to make it work. I also think that a nice parallax effect would make the train seem as though it was moving, which would really add to the aesthetic (maybe that and an occasional rumble as trains do)
That said, this being a jam I understand how little time there is for polish. I thought you guys did a fantastic job and I was thoroughly impressed the whole way through. Well done!