Now all that’s left to do is start the train. To do this make your way along the rafters to the left of the building. Go down the slide to reach the platform where the train is. Use the Green Hand to open the train door. Use the clues to start the train.
Once you’ve inputted everything listed above you are able to move the train. To do this pull the train accelerator in the upper right hand side of windshield. The train will start moving and Poppy will speak to you. Near the end of the ride you will be prompted to pull the breaks, if you don’t you will continue to ride infinitely. Pull the brakes using your hands to trigger a cutscene and the game’s end credits