Credits to nameless
Tools (download tools in the Tools section):
- Nameless's RC Tool [Link 1 | Link 2] Choose any links in case some of the links don't work for you.
- Flash 9 / Flash 10
- Any browser
- Mouse recorder
- Download the RC Tool.
- Go into Restaurant City (lock up the restaurant by putting a chair at the door)
- Open RC Tool and select Flash version and Browser then click 30/sav
- Wait for a pop-up saying 'Cheat Activated'
- Now in RC, click Decorate
- Shift a furniture
- Click the Green Tick to save the game
- Keep repeating steps 5,6,7 and you will get 30coins each time. I gained a few hundred coins easily in seconds. Set the mouse recorder to automate the Steps and you can go sleep!