Cheat Mode:
Press L + R + Z at the main menu to open the cheat menu. Access the cheat menu to enter cheat codes.

Unlock All:
Enter MIDAS as a cheat. Start the game in Get A Life mode, get into the hot tub with the girl, then press Start and quit without saving. This will unlock all two-player games, all locked objects, and all locked skins. Ta Da!

Everything Is Free:
Enter FREEALL as a cheat. Everything will now cost 0 Simoleans. Warning, can mess up your game if you save. Use with caution.

The Party Motel:
Enter PARTY M as a cheat. Party Motel 2-player game now available.

Original Sims:
Enter SIMS as a cheat. Play the open-ended Sims game like on the PC.

First-Person:
Enter FISH EYE as a cheat. Press X to change views.

Life of Crime:
Catch a thief in Get A Life mode to unlock the Life Of Crime career!

Get Probed:
Buy a telescope and use it a lot. Your sim will be kidnapped by aliens. They will be returned later, but they will be slightly different.

Fast Decorating:
Holding L or R and pressing A will speed up the process of laying wallpaper or tiles.

Thanks to Revolution readers Ratman and Richard!