To unlock every scenario, play the first game and build the following on Pacific Avenue: a theater, bar, restaurant, bakery, apartment complex, and clothes store. Build all of these buildings as tall as you can with a medium quality. It does not matter how much surface area you make them. You must do this before the second time period. Then, save and quit the game. When you restart the game, you should have all the scenarios unlocked and the budget will read 100,000,000, but will never decrease (unlimited budget).