Winja's Fear & Force

Winja's Fear & Force is the generic term for two spinning roller coasters, Winja's Fear and Winja's Force, at Phantasialand in Germany. They are located in Wuze Town, an indoor area of the park.

The rides consist of two similar tracks which mirror each other at first but also feature some unique sections. The cars seat four people, two facing backwards, and freely spin after the first drop. In theory, this would mean every single ride would spin in a unique pattern. However, several sections of track are designed to make optimal use of the car's momentum, forcing the car to move in certain ways.

Wikipedia