Press tab to get the small cursor and type any of the
following: 

"Amtrak" -Company loses $1 million.
"BigfootGold" -win with gold victory.
"BigfootSilver" -win with silver victory.
"BigfootBronze" -win with bronze victory.
"Bigfoot" -win with gold victory.
"BoBo" -lose scenario.
"King of the hill" -gives your character $100,000.
"Powerball" -gives company $100 million.
"Slush fund" -gives company $1 million.
"Let me in" -gives access to all denied territories.
"Speed Racer" -doubles maximum train speeds.
"AMD103" -converts all engines to AMD-103's at 
          expense of profits.
"Casey Jones" -cause all competitors trains to crash.
"Show me the trains" -gives all engines.
"Viagra" -increases city sizes.
"Cattle Futures" -Gives player 1 million.
"Overtime" -Stations double the output of cargo.