Helix

turn the cake. let the gobstopper fall.

a gobstopper bounces on a tall tiered cake: drag sideways to turn the cake so a cut-out slice comes under it, never land on burnt sugar, and drop three floors at once to smash the next

The ball only ever falls straight down; you turn the cake under it. Drop three floors without a bounce and the gobstopper has built enough speed to smash through the next tier, burnt sugar and all.

Concepts: rotation, gravity, momentum.

An interactive you play with one thumb, on Wundr.