Modify ocean level
     Hold  [Option] in the Edit window. Then select "Raise/Lower" land
tool.  Additional options should appear allowing you to change the sea
level.

More money
     Type "fund" while the mouse pointer is in the toolbox.

Plants and animals are extinct
     Type "erad" while the mouse pointer is in the toolbox.

Random altitudes
     Type "rand" at the map window.

Robots
     Place  an  atomic  bomb in a city of the Nanotech Age. The robots
will escape and live as separate life forms.

Smooth terrain
     Type "SMOOTH" in uppercase during the game.

Create All Hidden Items
     Pause the game and type "motherearth".