Sim City 2000

 CHEATS:

 Select a new scenario and choose "Hard". Go to the newspaper
 and click "Off". Pause the game and select "Budget". When asked
 if you want to repay the bond, select "Yes" and "OK". Now type
 FUNDS (or FUND) five times. When the text appears, select "Yes".
 Go back to Budget, repay the bond and click "OK" again. Now go
 back to where the bond is issued. Something special moves in the
 percentage column. Click "OK" and you'll be $500,000 richer per year.

 Additional codes to type during the game:
 CASS - Gives you $250, causes a disaster if used multiple times
 JOKE - A silly joke
 VERS - Shows the game version
 These words are also supposed to do something:
 GUZZ, PIRN, ARDO, TOPS

 Start a new game in any year on Hard difficulty. Type "FUND"
 until your money reaches $60,000. Answer all questions with Yes,
 then go to your Finance menu and into Loan Repayments, click
 the Repay button. Answer Yes to all questions and repay the loan
 at 3%. Now you'll receive $50,000 free every year.