Open a ride and as soon as it is full, double click on close to get the money the guests paid for the ride. When your park has enough money to afford all of advertisement campaigns, put all of them on. Then, hike the entry price to $50. Crowds will come swarming in because of the advertisements and will pay $50 to enter. This will result in quick and easy money. When in Dynamic Dunes go to the Dynamic Blaster roller coaster. Set the price to $3, wait until you get a very long line, then hike the price up to about $10. Every person in that line will have to pay $10 to ride. Note: Using a higher price may cause everyone to leave the line.