Instead of using a cheat code to toggle "aging on" and "aging off" like in The Sims 2, you can de-activate the age in "Options", then "Game Options".
Cheat Mode
Press [Apple] + [Shift] + C to display the console window. Enter one of the following codes to activate the corresponding cheat function.
Effect
Code
+50,000 Simoleons while on the lot
motherlode
+1,000 Simoleons while on the lot
kaching
+2,500 lifetime happiness points to active Sim
shazaam
Add active Sim to current household
add to household
Click career building to display all events for the career consecutively
force all events
Click career building you work at to force an event
force event
Click career building you work at to force an opportunity
force opportunity
Display console commands
help
Enable testing cheats (See Note)
testingCheatsenabled [true or false]
Forces a neighbor to show up
force visitor
Force a specific service Sim to appear
force service sim [name]
Force terrain adjustments regardless of objects, Sims, and other structures
constrainFloorElevation [true or false]
Full screen
fullscreen [on or off]
Give selected Sim a career
set career [career/level]
Ignore the cost when buying a lot
freerealestate
Llamas enabled message
enablellamas [on or off]
Make several random friends for selected Sim
make friends for me
Objects fade when camera gets close to them
fadeObjects [on or off]
Objects will not snap to slots while holding [Alt]
disableSnappingToSlotsOnAlt [on or off]
Quit game
quit
Random joke in console
jokePlease
Return Sims to safe and neutral state at home
resetSim [first name] [last name]
Selected Sim knows every other Sim
make me know everyone
Set age of the Sim
set age [number]
Set motives static or dynamic for entire household
make motives [static or dynamic]
Set or clear traits
modify traits
Sets all mood/moodlets for everyone in the house to perfect; removes negative moodlets
make happy
Show talk/thought balloons above Sim's head
hideHeadlineEffects [on or off]
Slow motion visuals; 0 is normal, 8 is slowest
slowMotionViz [0-8]
Take the Sim back to Create-a-Sim
edit in cas
Toggle framerate display at top right
fps [on or off]
Toggle objects can be placed anywhere in Buy and Build modes
moveObjects [on or off]
Toggles 45 degree angle object snap
snapObjectsToAngle [true or false]
Toggles snap to grid for placed objects
snapObjectsToGrid [true or false]
View career outfits and service uniforms
unlockOutfits [on or off]
Note: Hold [Shift] and click a Sim or anything else like your Mailbox. You can move your Sims' status bars as desired by clicking and dragging (hygiene, energy, fun, etc.).
Clothes
To get new clothes, you must first have to buy a dresser from "Buy Options". Once there click "Plan Outfit". You can put a total of three different clothes for each type (formal, every day, athletic, etc.)
Easy Cooking skill
This trick requires a television with a cooking channel and a video game system. Have a Sim sit down and watch television. Switch the television over to the cooking channel so that the Sim can start earning his or her skill point. Then have a second Sim go over and start playing video games. You notice that although the television is displaying video games, the first Sim still has the skill meter above their head. Allow this Sim to sit there for as long as they please until they decide to do another activity of their own. After that, the skill meter should stay above their head until you start another cooking skill activity. As an added bonus, you can train two skill points at once. For example, work out and both the Athletic and Cooking skills will continue to rise.
Easy money
Start writing novels on your computer. Write fiction novels as they take the least amount of time. They will not bring you too much Simoleons. When you write, your skill will automatically advance. If your skill is high enough you will be able to write more novel types/genres. The most money can be made from "Romance Novels". You will get royalties for six weeks once you finish a book. With the "Writing" skill maxed out, you can make about 40,000 Simoleons every week, which is more than the 34,800 Simoleons you can get by purchasing all neighborhood businesses, and takes less time to achieve. In three game weeks you should have a very high speed writing, 9 or 10 novels as best sellers and 100,000 Simoleons.
Electronic Arts game references
Have the video game system and have your Sims play it. Zoom in on the television to see that the games they are playing are various Electronic Arts titles.
Free bookcase skills
Buy a bookcase, then have your Sim begin to study. Interrupt the action so that the book is placed on the ground. Sell the bookcase. The book can now do everything the bookcase could have done for free.
Hording pizza
Have a Sim call for pizza. When the pizza delivery man arrives, do not accept the pizza! The delivery man will eventually leave the pizza on the front porch, and it will never get stale. You can stack as many pizzas there as you want. If your Sims get hungry, just tell them to get a pizza from the front porch.
Making friends
Buy a guitar. Play it to learn how to play guitar. Keep playing until you reach 5/10 level, which gives you the ability to "Play For Tips". When you have that ability, go to the park with the guitar in your inventory. When you are in the park, click the guitar in your inventory and select "Play For Tips". People watching you will become your friends if you keep playing. The higher your guitar skill, the faster they will become friends with you.
Put your own music on the radio
Place the desired .MP3 files in the "/MyDocuments/EAGames/TheSims2/Music/[radio station] folder. Start the game, go to "Options" menu, select "Music Settings", then choose radio station. Select which songs you want the radio to play.
Put your own videos on the television
Use the following trick to watch your own videos on the Sim television. Place your video you want into the "/My Documents/EA Games/The Sims 2/Movies/Broadcast/[television station]" folder. Turn on the television in the game and you can watch it. The video must be in .AVI format, with a resolution no larger than 128x128 pixels, and frame rate not greater than 15 frames per second.
Saving money
No matter how many times you use an object, if you sell it in the same day you can get all your money back. If your Sim is poor and needs body points or something else, buy a body machine and keep selling it back to get a refund of all your money.
Strange faces
There is a glitch in Create-A-Sim mode that allows to you to make very strange faces. Go to the face designing area. Select a face part such as the eyes and max out all the sliders one way or the other. Then go to a different face part and select one of the predesigned parts. Return to the eyes. The sliders will have reset to the middle, but the eyes will still look the same. This works for all of the face adjusting tabs. You can then continue to max out the size of the eyes and repeat. You can make eyes the size of dinner plates, very long cheekbones, huge noses, and more.
Testing cheats
Enable the testingCheatsenabled true code, then enter one of the following codes at the console window to activate the corresponding cheat function. You may now also hold [Shift] and click your mailbox to access the options: "Make All Happy", "Force Visitor", "Set Career", and "Set Level". You can hold [Shift] and click on Sims to access the options: "Add Sim To House", "Change Sim Traits", and "Force Aging". Finally, you can teleport a Sim in Ground View mode by holding [Shift] and clicking on a destination.