While playing, press ~ to get the console. Now enter a code below and press ENTER to activate:

Effect - Code

Additional - $100,000,000 INeedCash
Big airport - MassDrop
Earthquake - DoEarthquake
Tornado - DoTornado
Get indicated budget amount - SetBudget
Get indicated money amount - SetCash
Hide game - HideGame
Unhide game - ShowGame