Press Ctrl + Shift + C to display the console window and then enter one of the following case-sensitive codes (without the quotes) to enable the corresponding effect. On Vista press Ctrl + Windows + Shift + C to display the console window. The codes for the original 'The Sims 3' can also be enabled.
Unlock New Basement Tools:
Enter the code 'buydebug'
Toggle Objects Allowed on Roofs:
Enter the code 'allowObjectsOnRoof (On/Off)'
you must have testing cheats enabled by typing in on cheat mode testingcheatsenabled true then you click on a pregnant sim and go into cheat mode again and type in Force Twins.
How to get everything cool!!!
You type in testingcheatsenabled true just like I typed it. Then you put buydebug on. You put both of these in the cheat box. Then you go to buy mode sort by function. Then you click the question mark. There you should find all sorts of cool stuff, including the magic chinease axe!
You can access the Special Items Buy Menu sort by going to Buy Mode, opening the cheat console (hit Shift + Ctrl + C) and entering buydebug. This new sort allows you to pick out new tomb objects such as floor traps, floor switches, dive wells, and more!