Testing cheats

thumb|right|300px|An example of this cheat in action in The Sims 2 boolProp testingCheatsEnabled and testingCheatsEnabled are debugging tools for The Sims 2 and The Sims 3 which is very powerful, but it might negatively affect the game and cause glitches.

In The Sims 3, the cheat is not nearly as powerful as in The Sims 2, but it is still the most powerful in the game.

This cheat is often erroneously called "boolProp", which means "Boolean property" or "true/false". In The Sims 2, there are several cheats that start with "boolProp".

Use and abilities
To use it, after entering the code followed by "true", then press the Shift key (and Ctrl) while simultaneously clicking on a Sim or the mailbox. A menu will pop up giving the player options. There are many actions possible with this cheat, including making Sims grow up, changing a Sim's aspiration or traits, moving and deleting objects that weren't movable or deletable previously (although this can also be achieved using the moveObjects cheat), spawning cheat objects, and making Sims selectable or non-selectable. To turn the cheat off type the prompt in the cheat window with the word "false" after it.

In Create-A-Sim, if the the cheat has been enabled prior to entering, hidden hairstyles, clothes, eye color, make-up and skin colors can be unlocked by pressing (Shift) + N. This must be done before entering Create-A-Sim. When activated, a pop-up box will appear, informing the player that has activated debugging mode and hidden aspects have been unlocked, now giving Sims the ability to wear NPC clothes and hidden hairstyles, among other things. The cheat can be disabled by pressing (Shift) + M.

This cheat also enables "force error". If a player uses this, depending on what they click they can delete or reset a Sim. It can be handy to reset a character if they are frozen but, unfortunately, it can also be dangerous.

Dangers of using the cheat
Many times this cheat will cause family members to disappear. A pop-up will appear on the screen, saying there is an error with [error code], and give three choices. No matter what is chosen, the Sim that was selected or interacted with disappears from the game. Rather than exiting without saving, it is possible to use the Tombstone of L and D, a spawnable cheat object accessible via this cheat. Once spawned, select 'Get Family Member' and click on the name of the missing Sim. This will return the Sim without losing game progress.

It is possible for Sims to randomly die if the game is saved with testingCheatsEnabled on. The only way out of this is to use the Resurrect-O-Nomitron to resurrect the dead Sim before another Sim dies.