One thing that immediately comes to mind is adding bottom world boundry, that’ll prevent the character from falling indefinitely. Instead, the character could land on the train tracks and play a “dead” animation. Next is some creative way of adding the cars; one way to do it would be having the train car approach from behind the train and then connect -> maybe some bonus points for players taking the risk to jump onto the platform before it connects. The GUI could use some more clarity, even simple icons would make a huge difference.