i have been on two.there is a ride here called the inverter and it goes high as hell and dangles you upside down for about 10 sec onds and then flies back down to flip upside down again...crazy ride i went on hella high.and this one at this place called buffalo bills or somethin right outside of vegas and i went on that coaster and i guess it is supposed to be the highest/scariest one in the us but i dont know but i tripped me out so hard.