Ghost Train:
If you make a hanging train in the game, and you delete the track after that, the train will be invisible and you will only see the number of waiting passengers at the stations change.(some trackparts can't be deleted.)

If That is Your Real Name:
Re-name one of your lines to "Gladstone" (Must be a capital G) and get 100,000 Cash. Rename one of your lines to "Gearloose" (Must be a capital G) and win the round.

Thanks to Revolution reader Raymond Blom, and Simon Mellor!