Here are some Sims 2 Cheats that i found

Press Ctrl + Shift + C to bring up the cheat console.

• Add 1,000 dollars to household funds: Kaching
• Move unmovable objects and put them in illegal places: Moveobjects on/off
• Sims won't age: Aging on/off
• Changes Sim's height: StretchSkeleton 1.0 where 1.0 is the default. 
• Toggles notification of available game patches: Autopatch on/off
• Turning off for better game performance with some graphical errors: Vsync on/off
• Turns off facial bounding limitations. It prevents the normal corrections the game will make for two parents with very different facial structures: faceBlendLimits (on/off)
• Lists some, but not all cheats: Help
• Closes cheat window: Exit
• Expands or contracts the cheat window: Expand
• Use false to place the objects out of grid: boolProp snapObjectsToGrid true/false

• Removes every sim from the neighborhood: deleteAllCharacters
• Toggles between two terrain types: TerrainType desert/temperate
• Turns shadows on and off: boolProp simShadows (True/False)
• Turns plants in neighborhood on and off: boolprop displayNeighborhoodFlora (True/False)
• Turns roads in neighborhood on and off: boolprop displayNeighborhoodRoads (True/False)

Allows objects to be rotated 45 degrees: boolProp allow45DegreeAngleOfRotation (true/false)