Monopoly Tycoon

More money:
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "initialpref.lua" file in the scenario or level folder in the "scripts" directory in the game folder. Near the top should be the following entry:

if Game.GetDifficulty() == DIFFICULTY_(difficulty) then InitialValue.playermoney = (money to start with);

Find the difficulty you are playing under and change the initial value to whatever desired. Note: The custom scenarios in the game are in the "custom/deepred" folder.

Win auctions:
Start an auction. Immediately save the game when the auction screen appears. Quit the game and reload your saved game. Almost all of the time, the CPU players will pullout of the auction, allowing you to get the property for the cheapest price. If this does not happen, reload the game and try again.

Megapolitan bonus scenario:
Finish all scenarios with any character. After the ending sequence, you be given a new scenario to build a Megapolitan. You will have $200,000,000 to build it, with no rival leaving you free to build your own city.
Indra.

Hint: Construction:
If you want to construct a building, it is better to build the night time buildings in the day time and the day time at night. It is cheaper to do so this way.
Djas00.

Hint: Unlock all scenarios:
To unlock all the scenarios, play the first game and build the following on Pacific Avenue: a theater, bar, restaurant, bakery, apartment complex, and clothes store. Build each 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).
Americanwillo.