Do you have to pay for roller coaster and other thing rather than tickets for entry?

Coaster's are free

I can't think of any ride that requires additional cost other than entry, just the carnival-like games to win prizes. There is an additional charge for a fast lane upgrade that gets you to the front of the line for rides. There's also a separate admission price for the water park.

You pay entry. Most rides are included. There are maybe 2 or 3 rides I can think of that require payment but rollercoasters and most other rides are included in your entry ticket.