Great game!
Making it so that you have to make loop in the tracks to buy yourself time was an excellent take on the theme and I also think turning those chill train-track puzzle into a super hectic and difficult arcade game was a clever choice that worked out well.
Maybe you could make it so that the train starts of slower and then progressively speeds up to make the start more manageable, but I can also respect a game that doesn’t hold it’s punches right from the beginning.