Cheat mode:
Hold [Ctrl] and type one of the codes:

Result - Code:

Additional $20,000 - pesos
Set treasury amount - exacto (number)
Faster building - rapido
Add 10 to Happiness - contento
Kill selected unit - muerte
Destroy all trees - respecto
Political level of difficulty - politicaldifficulty
Economic level of difficulty - economicdifficulty
Remove all people from map - removepeople

Change City Names:
To change the name of a town move the screen so that the name is in the upper left hand corner. You should be able to click on it. A name box will come up and you type in a new name.

Stop Elections
Eliminate every opponent that runs against you until the election, then the game will notify you after the election that the people are upset that you killed him, and a new opponent will run. It will still think its election time, after a new twelve months, but you will never have to run again! For the best effect, when its coming up to the last month of election, issue an order to have your opponent made "heretic". If youre too fast make the next one the same, and so forth.