There is a timing component to the game - some actions are only possible when the train is at certain positions on the track.  So this walkthrough only works if it no other commands are given:

open casket with knife
wait
wait
wait
wait
look through window
give crown to robot
hit front door
hit back door
give crown to superhero
open coupler with grappling hook
give crown to armyman
shoot speed switch
shoot direction switch
give crown to robot
wait
wait
wait
wait
wait
wait
wait
wait
take tree
open panel with tree
take battery
exit