If your Sims have bad moods you can make them have good moods.
When your in a house use shift+ctrl+C
and type in move_objects on.
Then god to build mode and get the hand tool.
Click on a Sim and it will say " Do you want to delete object(Unknown)"
Click yes!
If you need more help, we've got more Sims House Party cheats and also check out all of the answers for this game
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