Floorless coasters are a particular form of the B&M Multilooper coasters. The course of the coaster is heavily based on inversions, but the gimmick here is that coaster train "loses" its floor before it leaves the station. The legs of the rider are left dangling over the top of the track. FLoorless coasters have really replaced the traditional B&M sit down coasters, with a floored train - much to the upset of a lot of people. Floorless coasters are commonly regarded as being less forceful and exciting as the older B&M multiloopers, where the trains retained their floor.