What one do you have the first one? if you go to one of the buttons at the top and where you can advertise your park if you go to the top of that bit you can look at your bank balance and stuff and you can just press up until it stops and gives you money on a loan, ive never actually made a rollercoaster coz i get annoyed, i just make the park lush so people come in and rob their money by putting burgers for sale for like £10 hahahhahaha