Swirly Slab

A Swirly Slab is a circular platform with a spiral on it in Wario World. If Wario performs a Wild Swing-Ding on it, the Swirly Slab will rise, giving Wario access to higher areas otherwise inaccessible.

In this respect, the Swirly Slab is to the Wild Swing-Ding as the Bunny Spring is to the Ground Pound.