http://www.netrover.com/~timt/cheats/s/simcity2000.html (Amiga Plus Extra No. 5/97, 05/1997)Start a new game, any year on Hard level, type "FUND" until your cash is at $60,000 (reply yes to all queries). Now go to the budget menu and select bond repayments. Then click on repay bond and answer yes to repay bond at 3%. You will now get $50,000 every year.
Also try typing some of the following.
"JOKE"--For a dumb joke