BigDipper is a type of steel roller coasters by Mack Rides.
Being the first of its kind, the roller coaster Lost Gravity opened at Walibi Holland in March 2016.
The short trains make it possible to drive through very tight curve radii.
The roller coasters are basically driven by a chain lift hill, whereby the wagon after the lift covers the rest of the distance solely through gravity.
The outer seats are also slightly offset upwards.