When the mother is in labour, but before the stork message appears, open the cheat window by pressing Ctrl, Shift and C. It is a good idea to pause the game at this point. Type in the code "forcetwins" and press play. The mother will then have twins.
Passwords
Press CTRL + SHIFT + C to access the cheat window, then enter the following:
Password - Effect
motherlode - 50,000 simoleans
letterBox # - Adds a letterbox effect to the view. (# = 0.0 to 0.4) (require postprocessing on)
boolprop constrainFloorElevation false - Allows you to change elevation of floor tiles.
deleteAllCharacters - At neighborhood view only, removes every Sim from the neighborhood.
vignette # # # - Blurry bits at the edge of the screen. (# = 0.0 to 1.0) (require postprocessing on)
RoofSlopeAngle (15-75) - Changes the slope angle of a roof
clear - Clears all cheat codes on the screen, but codes are still in effect.
exit - closes cheat window
vsync off - decreases game performance but increases graphics
boolprop constrainFloorElevation true - Disables the ability to change elevation of floor tiles.
expand - expands or contracts cheat window
kaching - get 1000 cash
boolProp testingcheatsenabled true/false - if set to true ALL other cheats work.
boolprop ShowLotPackageFilename (True/False) - In neighborhood, shows filename of house when lot is highlighted
vsync on - increases game performance but lowers graphics
bugJarTimeDecay off - Keeps Firefiles alive forever. To deactivate the cheat, type "on" intead of "off" in the same cheat
autopatch (on/off) - lets you know if theres a patch
help -all - list cheats
filmGrain # - Makes the screen grainy. (# = 0.0 to 1.0) (require postprocessing on)
StretchSkeleton - makes your sims larger or smaller
moveobjects (on/off) - moves objects and deletes you couldnt before
TerrainType (desert/temperate) - Only for use in neighborhood view, toggles between the two terrain types.
slowmotion - Puts the game in slow motion. Enter any number that 0 through 8 (0=fastest and 8=slowest)
boolprop lotTerrainLighting (True/False) - Set to false and lots will not light up when highlighted in neighborhood
boolprop locktiles (True/False) - Set to false to place floor tiles outside lot
boolprop displayNeighborhoodRoadsWithModel (True/False) - Set to false to remove bridges from neighborhood.
boolprop lotTerrainPaints (True/False) - Set to false to remove floorpainting on lot
boolprop displayNeighborhoodProps (True/False) - Set to false to remove props like rocks and towers from neighborhood
boolprop objectShadows (True/False) - Set to false to remove removes shadows on objects outside house
boolprop lotWater (True/False) - Set to false to remove removes water (ponds) from lots
boolprop displayNeighborhoodRoads (True/False) - Set to false to remove roads from neighborhood
boolProp guob (True/False) - Set to false to remove shadows on objects inside house
boolprop displayNeighborhoodWater (True/False) - Set to false to remove water from neighborhood
boolprop displayLotImposters (True/False) - Set to false to removes house graphics from neighborhood
boolprop displayNeighborhoodFlora (True/False) - Set to false to removes trees/plants from neighborhood
boolprop displayLookAtBoxes (True/False) - Set to true and blocks appear on Sims faces and on parts where Sims look at
boolprop carsCompact (True/False) - Set to true and cars will have more detail in neighborhood
boolprop renderSelectedSimLevel (True/False) - Set to true and walls will no longer cut away from selected Sim
boolprop allObjectLightsOn (True/False) - Set to true to light up objects continuously instead of only when used
boolProp displayPaths (True/False) - Set to true to see the path where the selected Sim walks to
boolprop lotInfoAdvancedMode (True/False) - Set to true to show lot information
bloom rgb # - Sitcom flashback blur effect (# = 0.0 to 1.0) (require postprocessing on)
boolProp simShadows (True/False) - Toggle shadows on/off for Sims
aging off - turn off aging
aging on - turn on aging
faceBlendLimits (on/off) - turns off facial bounding limitations. It prevents the normal corrections the game will make for two parents with very different facial structures.
boolProp enablePostProcessing false - Turns Postprocessing off.
boolProp enablePostProcessing true - Turns Postprocessing on.
boolprop allow45degreeangleofrotation true - Use your , & . keys to rotate the objects. It allows you to put objects on angles
intProp maxNumOfVisitingSims 8 - You can invite more people to your parties.
boolProp snapObjectsToGrid true/false - You can place objects outside the grid.
social_debug - You can tell what social reaction will happen before you do it
Torture Room
Ok to make yourself a torture room make a family and move them into a city with lots of people in the town. Turn on the move all objects cheat (by pressing holding Ctrl, Shift, C and typing moveobjects_on) then make a second floor to your house without stairs or an elevator leading up to it. Then when neighbors come to visit you pick them up and put them in your torture room and don't put anything in there like a bed or toilet. It is hilarious watching all of the people interact. Also order groceries or a pizza or call the cops or firemen etc. to get more people in there.