Cheat Mode
At the main game screen, hold down [Ctrl] and type in the code:
hdilore - Research all techs
hditech - Complete current research
hdirate - Add 40 to mall rating
hdicash - Add $100.000 to cash
hdizooma - Unlimited zoom
hdidizzy - Hold [Alt] and press [Up]
hdiart - View sim animation data
hdimax - Unknown effect