RollerCoaster Tycoon: Gold Edition

RollerCoaster Tycoon: Gold Edition cheat codes: 
Clear tall grass:
If you click tall grass with a ground level tool, the grass will change
to its "normal" state. This costs no money and will prevent guests from
complaining about uncut grass.

Changing a guest's name to one of the following will have the effect listed.
Richard Tan        - Guest will be theif
Tony Day           - Guest will be hungry
John Wardley       - Guest will think positively
Chris Sawyer       - Guest will have multiple photographs taken
Michael Schumacher - Guest will drive go-carts fast
Katie Brayshaw     - Guest will wave
Simon Foster       - Guest will paint pictures
Damon Hill         - Guest will drive go-carts fast
John Bibrough      - Guest will increase park rating
Melanie Warn       - Guest will be automatically happy
John Mace          - Guest will pay double on rides
Mr.Bean            - Guest will drive go-carts slow
Richard Branson    - Guest will make other guests have a lot of money