Roller coaster in Taiwan
Watch the on-ride POV
Formosa Fun Coast
Location New Taipei City, Taiwan
Status Defunct
Operated 1990 to 2004/2006
Worlds of Fun
Name Extremeroller
Location Kansas City, Missouri, USA
Operated April 10, 1976 to 1988
Replaced by Timber Wolf
Manufacturer Arrow Dynamics
Product Corkscrew
Type Steel
Propulsion Chain lift hill
Height 21.3 metres
Top speed 80.5 km/h
Length 381 metres
Inversions 2
Duration 1:10
Rolling stock
Manufacturer Arrow Dynamics (Sit-Down) (1984−2004/2006)
Arrow Dynamics (Stand-Up) (1983−1983)
Arrow Dynamics (Sit-Down) (1976−1983)
Riders per train 24

Spiral was a steel roller coaster built by American manufacturer Arrow Dynamics that was previously located at Formosa Fun Coast in New Taipei City, Taiwan.


The ride originally opened as Screamroller in Worlds of Fun on April 10, 1976. On May 31, 1983, the ride changed its name to Extremeroller (or EXT, depending on how the sign in front was interpreted) and received stand-up trains, making it the first Stand-up coaster with inversions in North America.[1] The trains were already recalled at the end of the season, which was common for Arrow Stand-up trains, but the ride's name wasn't converted back into Screamroller.

The ride closed in 1988 to make way for Timber Wolf, and it was sold to Formosa Fun Coast in Taiwan.

When the ride closed in Formosa Fun Coast, it was put in storage on the park's parking lot for 10 years before being scrapped.




2 trains with 6 cars per train. In each car, riders are arranged 2 across in 2 rows, for a total of 24 riders per train. The ride originally used trains built by Arrow Dynamics. The trains were replaced with Stand-up ones in 1983, these only lasted for one year, before the ride reverted back to its original trains. ACE has the old Arrow stand-up trains in storage.


  1. "Statistics and history of Extremeroller". Worlds of Fun.

External links

  • Spiral on the Roller Coaster DataBase.

Articles on Worlds of Fun