|Elements||Chain Lift Hill|
|Arrangement:||2 trains with 6 cars per train. Riders are arranged 2 across in 2 rows for a total of 24 riders per train.|
|Former names||EXT ( to )|
Screamroller ( to )
|Relocations||Worlds of Fun as Extremeroller|
Formosa Fun Coast as Spiral
|Capacity||1800 riders per hour|
ACE (American Coaster Enthusiasts) has the standup trains in storage.
For the 1983 season standup trains were put on the Screamroller's track and the ride was called the Extremeroller or E.X.T. This made the Extremeroller the first looping standup roller coaster in North America. After a few years, the original sitdown trains were reinstalled while keeping the Extremeroller/E.X.T. name.