Purchase plenty of amount of real estate, then hold CTRL + SHIFT and type petercheatercheaterwimp. Note: This cheat may only be enabled about ten times. To disable the cheat counter, save your city, quit the game, restart the game, and load your city. This function is not present in early versions of the game.
Activate the following cheats by performing the corresponding actions:
CHEAT FUNCTION - CHEAT CODE $1 million and all supplies - Hold [Ctrl] + [Shift] and type cheater-cheaterwimp. Unlimited money - Hold [Ctrl] + [Shift] and type cheatercheaterpeter. Alternate ending sequence - Hold [Ctrl] + [Alt] and type bellybutton.