Theme Park World Cheats

To get more visitors in your park hold (Left shift) +(left ctrl) + (left alt )

When you are in Dinoland, just ignore or delete the message about the cheap gate price to get a lot of visitors.

Cheat mode
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Pause game play and type "demo" to enable cheat mode.
Then, enter one of the following codes during game
play to activate the corresponding cheat function.

Effect Code
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$50,000 - [Shift] + C
All rides - [Ctrl] + Z
All shops - [Alt] + Z
Trees, bathrooms, and other facilities - [Shift] + Z

First you can be on your own one when its loaded (on any world) then get
all the scientists you can then go on research, move the rides + and -
to the + then move all the rest to the - then put a staff room in and
get more scientists if you can.