$10,000
Hold [Shift] and type "fund". Note: Enabling this code more than eight times in a row will result in an earthquake. To avoid this, enter the code up to eight times while the game is paused to collect $80,000. Then, save the game, exit, reload the game, and repeat the code as needed. Note: It does not matter how many times the code is entered, the maximum amount that can be collected is $80,000. The game must be paused, saved, and reloaded each time the code is entered.
Instant building
Hold [Ctrl] and attempt to build over objects.