Rock 'n' Roller Coaster is much, much, MUCH more intense than the other coasters of WDW. Unlike Space Mountain and Big Thunder Mountain Railroad, it goes upside down and 0-60 mph in seconds. It's indoors but is not completely dark like SM...there are various "sets"/"props" (i.e. a giant donut and roadsigns) that accompany the ride - black lights make them glow. In my opinion, it's the best ride at WDW. No other ride offers the same experience, not even the other roller coasters. The next ride that even comes close is ToT (for me, anyway).