CheatCodes.com has all the official Theme Park: Roller Coaster PS2 cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday June 19, 2013 for Theme Park: Roller Coaster are shown below.
While in the game, press Up, Down, Up, Down, Left, 18x
While in the park, press [Up, Down, Left, Right, Circle, Right, Left, Down, Up, Circle] five times.
While in the park, press [Up, Down, Up, Down, Left, Up, Down, Up, Down, Right] nine times.
While in the park, press [Up, Down, Left, Right, Circle, Right, Left, Down, Up, Circle] four times.
While in the park, press [Left, Down, X, Circle] eight times.
Once your park is up and running, press triangle to go to your laptop. Go to game options and click save game. After your game saves, you will come right back to the park you was working on, but all the people inside the park leave and come back. The first wave of people that come back get in for free, but at least half of them turn back. The next two or three buses that come in will be full of people and they all will have to pay to get back in the park. Do that over and over for a little more cash.
Press Triangle when the ant talks to stop it most of the time.
Create 10 roller coasters with an ultimate rating to unlock a Rollercoaster Test Park when a starting a new game or reloading a saved game.
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