Go to the password screen and type name as zarkon and enter password pan6caa85t9.
Megabucks
For a cool $33,000,000, go to the Password screen, enter your name as DST, and enter the password 5AKCQSEBDS4.
Unlimited Money
To get unlimited money,all rides, shops, and everything else possible in Theme Park, you must go to the password screen and enter your name as ZARKON and your password as 8AAACAA9999.